diff --git a/.dev/dev-jwt-key b/.dev/dev-jwt-key deleted file mode 100644 index 5174e301..00000000 --- a/.dev/dev-jwt-key +++ /dev/null @@ -1,51 +0,0 @@ ------BEGIN RSA PRIVATE KEY----- -MIIJKAIBAAKCAgEAp8DAocd7+LjrW0NucSPCcBnO7Inu7soRVCmaOjt1HcQHdCV4 -8WzPKAWxz/FQyVqHbUf+UZkw1ryi7CASf9n35Aia/JrYnW5hG1ti455GhgEUcItv -B7dpscK9N3DeeyNv4tk3FokdhiG/92LvujhMxFPjO60jex0H2yieR7Osx/AwCEHN -h6opct+EYNkoD1G2cXfCOCdZxpzBttU6jsvOfX3lDykWrZHSC0yfYpZU+9M4qtnj -ZbpKK/Vpw4Ic5qTpYm9rBkF3rDbQeY2O5nw+3S996ckMR5jKXb4aRxnX2LawQ2Mm -KmmYTRKMc7KG/vXPOH2qDcr/+caP5ZP+epTo5Rz4t88tuhTlj+KRefs1LM3dbq5r -LnIbe7zmTuyzTSlA+qTMkmt42dZ4mAH0huEHNd931owRDlLvl/Py3by4D+RZo+er -8D+wrkUQk4O+s6SYNqfdYphSIXgIbTeKny48E3Ph87fXQz4vgbJPFk1dGi9xm1ds -NLrkMoapvZwdN7bSJ5zqjro71M4HnFRUAGdYnM353W5uKwEHSmR6TcOUastQ7qJD -Y6DYNTKCte/XXQmgcResBtWRl2LVz7KepXHJrXjXcLv5OaJMRe9PklrWM3SOGpKf -Q2CP3XNvDvu2x1kb3sikzjVdtl4glcEI4Ow68Ani73dDyAIVcXPu2CtGyksCAwEA -AQKCAgEAo6JqRWUJkP0Q191XBhYTvLXwGtwRrex+KtLKFrOY8ogdnTZQW3AAQtIL -OQP0AfXE1Ny9P2tnMJChfCNs6Dn+jPm39WA2nJrnLoBeXhouQNkczwu0KprHBxcm -68W1v/g5U9b+3YSyv/x7/R0NK2FvwLLznWquiZEv8KAWhWrGx+GLeQJ3MjbSZ7OQ -tcgeQ5M5nEVttsjr0clnTKmCjXhQ3CjKH5e8/2KWuV7suoZaL6tCQ6Z3IuwtHeQu -Xv+0oWeMIPD+PQPvcJWnlmp3Um0wBSImeL4ctFpeTEL77w9OdZ7/ITy+JfELF2NY -jiM/e8TbdgdeskWqnEMMaq2KNpi68+2BvLa2aBOS4G0KZQirke9/e54giOuiFbN9 -CstT7w6qNLb1bVuMKNaX2Fe/JMP/Ex8eXJLY4dViTmodMASFP1pckvP1fcgzcNdJ -A8kxUujmS6mNZZSI91McWv4j1pAFWA4FzTgVnzyPoh2XZUbiR89QivJQkM0BLIVh -AwkEIX2M6IjHzEOM3+ZtYassG+vYCjz526vq4tsfbycuBaOlyxFpJhKOMTK6qsM9 -GHvXcOGJIkB8VSQLocEx22Lfg1h/U/zDGZeExbJMwsnOFfOAmzz8l3bviPTKyUK0 -SNbQfa76pTJ1pg3qMNpetTTpGudf7CS+CliS/GvTd+MBdnvhMwECggEBAN8bFfAv -S2U1R5X2OmbM3Q71zalL8WtogLoKt19j1y1WSzEE/0dun+xPz2CyUqAqQog21BNF -QZyDS5OoGApVvDWjQqtpLTlaPd0vqBCiPZFNkQ7YNOpPH2d0fh/wx66sn/AtMffL -ReFzvWM8rvl3ASr75fTIIoH6PuiI4J/IlEhIaa7iwp4nmtpmo+G23xQ/rbLdGiQu -M73QmMM/Qy61bmrCJ9OXlSu5hgk3Leu6zDJs2ygM7Joe+KzFNFq1WFw/ef4K6F0r -fbwBdAz5wOgitLgC69EmvL87mqLEQRTd/vgTjONj1+j3yVmhxzAzMaVZ/TWpuCkE -sDjiSpNr5b6+85ECggEBAMB8bRLpa+xaYLYGl8M94qaVca4o2l7ZrLmMX63+BAV9 -jpxUIbJ/hk9DJ1SAl53ZLIAYDYT637eHGOiXTD3IqqE91sYDlGvrRjxFJfBJnZlT -V6eXppN1rn+ZnKdJimd0H8pzQx7EGoGciXhDoawYhxY9BxkKQPDK93fCUr31tKDf -gpOG/gIoRGHX+drmZnVkYvXOVgYloxyiEc67rcQ04S6IVuP9c4kYSXy/3w3iBFvS -mPDgZsPKP1IQ4HVPDgFQfHkzaDIWf71XIiPgoZykYQx5araM7uwWFjsh/whZ5ulY -M3kOgNcMlQ90E5bEpGorzX0DPSx9vEODjCYnB5QQehsCggEAV7UqNrYhCbScY9Pc -ubUn4k23gCqeyf7XPEwiMpnpaaVXAfpY8RgIPrpRaE4yNUznwuzrCnhbhtAG0hFv -AgEacGuyNfivErDrSR0HESL22TyJHjDY/JQGYIFnY98gYQb0CVN7JVMAMdVySqT8 -lI24I9HLYSOcjUR3nqrQw3/y60esZFg48jvXoKxhGMbvg+JUwtAxCrAvHxv2MiuY -mbAxrD6PsZsRxZK1osHSh61zwQ8SSPhru1sZn7IXFuHbzsgViU14c8g5McPQf5lf -wOKD8SMU2bBE21jvPbWxcCalqZjl9i62HpvqyBXVXJmDluF9ra7++wEg1fwAHVx5 -gTdIQQKCAQBnEHiKvsdVt5K/BEqwdOtuDOjguukqDl2IwFve2vsmQXNhyz57yAKP -YEKn4W7NSyKjt71NbdLp/wFcUN622kJasbTVM8d9/W0PCmtk/NXQ6iouB2pe3I1B -r2uMuzjLagc3rH3M9G3I5ptI9NWVQ1DZnHW3d6EMDXFyA2+wXOaJmQPeoFJTr2Hm -DfGvvtwvkT/Xo9K12eM7iqAEVMOXIkVMWB5GV0hMqN94V3hEg7eXvuy7VTxRK3K6 -K2U0Cs9R7tmnP9pTr25YYFZcZYPDTtTUDBMSieXILY9bvDlFLHYSjXKKKDTecNND -ggCXItVyL+AIRvqzXuO2NrKNHyrUofnvAoIBADXUidZCHzGPwK5uCfmNm0DMz5S/ -iNN/qKAsAn87EeRPCg+LJa/vRp4SqJzogbeYfCeEtwJx5Y2+EJ+zVnXAs/k7WFPA -S94WfNlh9eRfsaVRDHdVSaB+Fhk8tQ3ZujwxtvfWQWy4aZBDMncWYzHJr5InI2jb -FMDs3cxLanMMRo5wOzmD2OI7Jdb5DE9eZCWBeu03kmVcAP0zpb5ouIhV1WdPJH2W -XSb7oyammHbQEMVeCYAULV1PcZ7RLI1ySdI9BpjIPlxMxAwqxUQXaMoYXfEftoGQ -Elp0Mkin32RzA1JqdtAXLX/3ikpjgVa6pxJ58WDqPypa8RtdAaJwrmxEt9M= ------END RSA PRIVATE KEY----- diff --git a/.dev/dev-jwt-key.pub b/.dev/dev-jwt-key.pub deleted file mode 100644 index e0b27c97..00000000 --- a/.dev/dev-jwt-key.pub +++ /dev/null @@ -1,14 +0,0 @@ ------BEGIN PUBLIC KEY----- -MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAp8DAocd7+LjrW0NucSPC -cBnO7Inu7soRVCmaOjt1HcQHdCV48WzPKAWxz/FQyVqHbUf+UZkw1ryi7CASf9n3 -5Aia/JrYnW5hG1ti455GhgEUcItvB7dpscK9N3DeeyNv4tk3FokdhiG/92LvujhM -xFPjO60jex0H2yieR7Osx/AwCEHNh6opct+EYNkoD1G2cXfCOCdZxpzBttU6jsvO -fX3lDykWrZHSC0yfYpZU+9M4qtnjZbpKK/Vpw4Ic5qTpYm9rBkF3rDbQeY2O5nw+ -3S996ckMR5jKXb4aRxnX2LawQ2MmKmmYTRKMc7KG/vXPOH2qDcr/+caP5ZP+epTo -5Rz4t88tuhTlj+KRefs1LM3dbq5rLnIbe7zmTuyzTSlA+qTMkmt42dZ4mAH0huEH -Nd931owRDlLvl/Py3by4D+RZo+er8D+wrkUQk4O+s6SYNqfdYphSIXgIbTeKny48 -E3Ph87fXQz4vgbJPFk1dGi9xm1dsNLrkMoapvZwdN7bSJ5zqjro71M4HnFRUAGdY -nM353W5uKwEHSmR6TcOUastQ7qJDY6DYNTKCte/XXQmgcResBtWRl2LVz7KepXHJ -rXjXcLv5OaJMRe9PklrWM3SOGpKfQ2CP3XNvDvu2x1kb3sikzjVdtl4glcEI4Ow6 -8Ani73dDyAIVcXPu2CtGyksCAwEAAQ== ------END PUBLIC KEY----- diff --git a/.dockerignore b/.dockerignore index bd31b460..1afb66fa 100644 --- a/.dockerignore +++ b/.dockerignore @@ -11,4 +11,23 @@ dist .coverage html/* **/__pycache__ -**/*.pyc \ No newline at end of file +**/*.pyc + +# Development files - should not be in production +.dev/ +src/.dev/ +src/.dev +**/.dev/ +**/.dev +*.sqlite3 +*.db +db.sqlite3 +src/db.sqlite3 +**/db.sqlite3 + +# Test artifacts +.pytest_cache/ +src/.pytest_cache/ +**/.pytest_cache/ +.coverage +htmlcov/ \ No newline at end of file diff --git a/.gitignore b/.gitignore index 362c30d7..965cc47f 100644 --- a/.gitignore +++ b/.gitignore @@ -2,6 +2,7 @@ *.env !example.env local.py +.dev/ env/ venv/ ENV/ @@ -81,4 +82,8 @@ pip-delete-this-directory.txt ## Database backups and tools with credentials backups/ -scripts/db-tools.sh \ No newline at end of file +scripts/db-tools.sh + +# Claude +settings.local.json +.mcp.json diff --git a/Dockerfile b/Dockerfile index 18d1c077..f35f486a 100644 --- a/Dockerfile +++ b/Dockerfile @@ -29,14 +29,14 @@ ENV VIRTUAL_ENV=/venv \ PATH="/venv/bin:$PATH" # Install production dependencies only -RUN poetry install --only=main --no-interaction --no-cache --compile +RUN poetry install --only=main --no-interaction --no-cache # ============================================================================= # Test builder: add dev dependencies # ============================================================================= FROM builder AS test-builder -RUN poetry install --no-interaction --no-cache --compile +RUN poetry install --no-interaction --no-cache # ============================================================================= # Runtime base: minimal image shared by test and production @@ -50,7 +50,6 @@ RUN apk upgrade --no-cache && \ pip install --no-cache-dir --upgrade pip ENV PYTHONUNBUFFERED=1 \ - PYTHONDONTWRITEBYTECODE=1 \ PATH="/venv/bin:$PATH" WORKDIR /app @@ -79,7 +78,6 @@ FROM runtime-base AS production COPY --from=builder /venv /venv COPY src ./src -COPY .dev ./src/.dev # Pre-compile Python bytecode for faster cold starts RUN python -m compileall -q ./src/ diff --git a/OPS.md b/OPS.md index d658196d..4cd606ef 100644 --- a/OPS.md +++ b/OPS.md @@ -1,20 +1,42 @@ # Deploying a new backend version -Once a release is built and deployed by CircleCI, deploy it to an environment using ArgoCD. +The backend is deployed to AWS ECS (Elastic Container Service) with separate staging and production environments. -1. First, to connect to ArgoCD: -``` -kubectl -n argocd port-forward service/argocd-server 8443:443 & -open https://localhost:8443 +## Building and Pushing Docker Images + +Use the `docker-build.sh` script to build multi-architecture images and push to AWS ECR: + +```bash +# Build and push staging images +./docker-build.sh staging + +# Build and push production images +./docker-build.sh prod ``` -2. login - credentials are in 1password, or ask someone for help -3. pick up the new version in staging. - - go to https://localhost:8443/applications/pyback-staging, - - click the hamburger menu (3 dots, blue button), -> Details -> Parameters - - update the images field with the build ID as the tag, like: `operationcode/back-end:staging-846` - - as the new pods deploy, tail their logs to check for errors - - validate the staging environment (notes below) -4. repeat those steps for the production environment + +This creates: +- `back-end:staging-amd64` and `back-end:staging-arm64` images +- A multi-arch manifest at `back-end:staging` + +## Deploying to ECS + +After images are pushed to ECR, deploy by updating the ECS service: + +1. **Update task definition** with new image tag +2. **Deploy to staging first** - Update ECS service to use new task definition +3. **Monitor logs** in CloudWatch or Sentry +4. **Validate staging** (see below) +5. **Deploy to production** - Repeat for production ECS service + +## Important: JWT Secret Key Migration + +**Before deploying these performance changes**, you must update the production `JWT_SECRET_KEY` environment variable: + +1. Generate a new secret: `openssl rand -base64 64 | tr -d '\n'` +2. Set `JWT_SECRET_KEY` env var in ECS task definition to the generated string +3. Remove `JWT_PUBLIC_KEY` env var (no longer needed with HS256) + +⚠️ **This will log out all users** (one-time migration from RS256 to HS256) # Validating the staging environment @@ -25,33 +47,30 @@ When you run the front-end repo in localdev mode, it automatically connects to t 2. run the dev server: `docker run -it -v ${PWD}:/src -w /src -p 127.0.0.1:3000:3000/tcp node:lts yarn dev --hostname 0.0.0.0` 3. Connect to the dev server: `open http://localhost:3000` -# Certificate management with certbot +# Monitoring -Certbot runs continously as a kube operator and refreshes certs for you. To ensure it is working, -check the logs of the `cert-manager` pod, like: -``` -kubectl -n cert-manager logs -f cert-manager-dcc48bf99-skhn7 -``` +## Sentry Performance Monitoring -Current version running is v0.10.1 +The application is instrumented with Sentry for error tracking and performance monitoring: +- Error tracking with breadcrumbs and context +- Transaction tracing for HTTP requests +- Database query performance tracking +- Python profiling for CPU-intensive operations -if you need for some reason to upgrade: -1. read the release notes for all versions between current and desired, watch for breaking changes -2. ignore the instructions about helm and kubectly apply, one minor version at a time -``` -kubectl apply \ - --validate=false \ - -f https://github.com/jetstack/cert-manager/releases/download/v0.10.1/cert-manager.yaml -``` +Configure via environment variables (see `example.env`): +- `SENTRY_DSN` - Sentry project DSN +- `SENTRY_TRACES_SAMPLE_RATE` - Percentage of requests to trace (0.0-1.0) +- `SENTRY_PROFILES_SAMPLE_RATE` - Percentage of transactions to profile (0.0-1.0) -certificates installed: -``` -$ kubectl get Certificates --all-namespaces -NAMESPACE NAME READY SECRET AGE -monitoring grafana-tls True grafana-tls 299d -operationcode-staging back-end-tls True back-end-tls 264d -operationcode-staging resources-api-tls True resources-api-tls 299d -operationcode back-end-tls True back-end-tls 264d -operationcode resources-api-tls True resources-api-tls 299d +## CloudWatch Logs + +Application logs are sent to CloudWatch Logs. Access via AWS Console or CLI: + +```bash +# View recent logs for staging +aws logs tail /ecs/back-end-staging --follow + +# View recent logs for production +aws logs tail /ecs/back-end-production --follow ``` diff --git a/README.md b/README.md index 2eff7854..41345053 100644 --- a/README.md +++ b/README.md @@ -25,13 +25,13 @@ For information about the maintainers of the project, check out [MAINTAINERS.md] ## Quick Start Recommended versions of tools used within the repo: -- `python@3.7` or greater (in some environments, you may need to specify version of python i.e. `python test.py` vs `python3 test.py`)) +- `python@3.12` or greater - `git@2.17.1` or greater -- `poetry@0.12.11` or greater - - [Poetry](https://poetry.eustace.io/) is a packaging and dependency manager, similar to pip or pipenv - - Poetry provides a custom installer that can be ran via `curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python` - - Alternatively, poetry can be installed via pip/pip3 with `pip install --user poetry` or `pip3 install --user poetry` - - See https://poetry.eustace.io/docs/ +- `poetry@2.3.0` or greater + - [Poetry](https://python-poetry.org/) is a packaging and dependency manager + - Install via: `curl -sSL https://install.python-poetry.org | python3 -` + - Or via pip: `pip install --user poetry` + - See https://python-poetry.org/docs/ ```bash @@ -57,7 +57,7 @@ poetry run pytest poetry run black . # the next line shouldn't output anything to the terminal if it passes poetry run flake8 -poetry run isort -rc . +poetry run isort . ``` ## Running [Bandit](https://github.com/PyCQA/bandit) diff --git a/docs/LITESTREAM_PROPOSAL.md b/docs/LITESTREAM_PROPOSAL.md new file mode 100644 index 00000000..b676c3ef --- /dev/null +++ b/docs/LITESTREAM_PROPOSAL.md @@ -0,0 +1,1130 @@ +# Migration Guide: RDS PostgreSQL to SQLite + Litestream + +This document outlines the migration from Amazon RDS PostgreSQL to SQLite with Litestream replication on S3, plus the compute migration from Spot instances to On-Demand with Savings Plans. + +**Total Annual Savings: ~$197/year** while gaining reliable compute (no more spot interruptions) and 2× RAM. + +## Table of Contents +1. [Overview](#overview) +2. [Architecture](#architecture) +3. [Prerequisites](#prerequisites) +4. [Phase 1: Infrastructure Setup](#phase-1-infrastructure-setup) +5. [Phase 2: Application Changes](#phase-2-application-changes) +6. [Phase 3: Migration Execution](#phase-3-migration-execution) +7. [Phase 4: Cutover](#phase-4-cutover) +8. [Phase 5: Cleanup](#phase-5-cleanup) +9. [Phase 6: Compute Migration (Spot → On-Demand + Savings Plan)](#phase-6-compute-migration-spot--on-demand--savings-plan) +10. [Rollback Plan](#rollback-plan) +11. [Monitoring & Troubleshooting](#monitoring--troubleshooting) +12. [Cost Comparison](#cost-comparison) + +--- + +## Overview + +### Current State +| Component | Value | +|-----------|-------| +| Database | RDS PostgreSQL 13.20 | +| Instance | db.t4g.micro | +| Configuration | Multi-AZ | +| Monthly Cost | ~$29 | +| Storage | 20 GB gp2 | + +### Target State +| Component | Value | +|-----------|-------| +| Database | SQLite 3.x | +| Replication | Litestream → S3 | +| Recovery | Point-in-time (continuous) | +| DB Monthly Cost | ~$0.05 (S3 storage only) | +| Compute | 2× t4g.small On-Demand | +| Compute Monthly Cost | ~$17.50 (with Savings Plan) | +| Reliability | No spot interruptions | + +### Why This Works for Operation Code +- **23 legitimate requests/day** - Single writer is sufficient +- **2 simple models** - No PostgreSQL-specific features +- **1 ECS replica** - No multi-writer concerns +- **Low data volume** - SQLite handles this easily + +--- + +## Architecture + +``` +┌─────────────────────────────────────────────────────────────┐ +│ ECS Task │ +│ ┌─────────────────────────────────────────────────────┐ │ +│ │ Container │ │ +│ │ ┌─────────────┐ ┌──────────────────────────┐ │ │ +│ │ │ Django │────▶│ SQLite (/data/db.sqlite3) │ │ │ +│ │ │ + Q2 │ └──────────────────────────┘ │ │ +│ │ └─────────────┘ │ │ │ +│ │ │ │ │ +│ │ ┌─────────────┐ │ watches │ │ +│ │ │ Litestream │◀─────────────┘ │ │ +│ │ └──────┬──────┘ │ │ +│ └─────────┼────────────────────────────────────────────┘ │ +└────────────┼────────────────────────────────────────────────┘ + │ continuous replication + ▼ + ┌──────────────┐ + │ S3 │ + │ (replicas) │ + └──────────────┘ +``` + +### Startup Flow +1. Container starts +2. Litestream restores latest SQLite from S3 (if exists) +3. Django starts with restored database +4. Litestream begins continuous replication to S3 + +### Failure Recovery +1. ECS detects unhealthy task +2. ECS terminates task, starts new one +3. New task restores from S3 (< 30 seconds for small DB) +4. Service continues with minimal downtime + +--- + +## Prerequisites + +- [ ] AWS CLI configured with appropriate permissions +- [ ] Terraform installed (for infrastructure changes) +- [ ] Access to `operationcode_infra` repository +- [ ] Access to AWS Secrets Manager +- [ ] Backup of current RDS database + +--- + +## Phase 1: Infrastructure Setup + +### 1.1 Create S3 Bucket for Litestream Replicas + +Add to `operationcode_infra/terraform/storage.tf` (create if doesn't exist): + +```hcl +# S3 bucket for Litestream SQLite replicas +resource "aws_s3_bucket" "litestream" { + bucket = "operationcode-litestream-replicas" + + tags = { + Name = "Litestream SQLite Replicas" + Environment = "production" + } +} + +resource "aws_s3_bucket_versioning" "litestream" { + bucket = aws_s3_bucket.litestream.id + versioning_configuration { + status = "Enabled" + } +} + +resource "aws_s3_bucket_lifecycle_configuration" "litestream" { + bucket = aws_s3_bucket.litestream.id + + rule { + id = "cleanup-old-generations" + status = "Enabled" + + # Keep only last 7 days of point-in-time recovery + expiration { + days = 7 + } + + noncurrent_version_expiration { + noncurrent_days = 3 + } + } +} + +resource "aws_s3_bucket_server_side_encryption_configuration" "litestream" { + bucket = aws_s3_bucket.litestream.id + + rule { + apply_server_side_encryption_by_default { + sse_algorithm = "AES256" + } + } +} + +# Block public access +resource "aws_s3_bucket_public_access_block" "litestream" { + bucket = aws_s3_bucket.litestream.id + + block_public_acls = true + block_public_policy = true + ignore_public_acls = true + restrict_public_buckets = true +} +``` + +### 1.2 Create IAM Policy for Litestream S3 Access + +Add to `operationcode_infra/terraform/iam.tf` (create if doesn't exist): + +```hcl +# IAM policy for Litestream S3 access +resource "aws_iam_policy" "litestream_s3" { + name = "litestream-s3-access" + description = "Allow Litestream to read/write SQLite replicas to S3" + + policy = jsonencode({ + Version = "2012-10-17" + Statement = [ + { + Effect = "Allow" + Action = [ + "s3:GetObject", + "s3:PutObject", + "s3:DeleteObject", + "s3:ListBucket" + ] + Resource = [ + aws_s3_bucket.litestream.arn, + "${aws_s3_bucket.litestream.arn}/*" + ] + } + ] + }) +} + +# Attach to ECS task execution role +resource "aws_iam_role_policy_attachment" "ecs_litestream_s3" { + role = data.aws_iam_role.ecs_task_execution_role.name + policy_arn = aws_iam_policy.litestream_s3.arn +} +``` + +### 1.3 Apply Terraform Changes + +```bash +cd /Users/irving/src/operationcode/operationcode_infra/terraform +terraform plan -out=litestream.plan +terraform apply litestream.plan +``` + +--- + +## Phase 2: Application Changes + +### 2.1 Create Litestream Configuration + +Create `src/litestream.yml`: + +```yaml +# Litestream configuration for SQLite replication to S3 +dbs: + - path: /data/db.sqlite3 + replicas: + - type: s3 + bucket: operationcode-litestream-replicas + path: python-backend/prod + region: us-east-2 + # Sync every 1 second (near real-time) + sync-interval: 1s + # Snapshot every hour for faster recovery + snapshot-interval: 1h + # Validation settings + validation-interval: 5m +``` + +### 2.2 Create Startup Script + +Create `src/docker-entrypoint.sh`: + +```bash +#!/bin/sh +set -e + +DB_PATH="/data/db.sqlite3" +LITESTREAM_CONFIG="/app/src/litestream.yml" + +# Function to run Django +run_django() { + echo "Starting Django application..." + cd /app/src + + # Run migrations + python manage.py migrate --noinput + + # Start Q cluster in background and Gunicorn in foreground + python manage.py qcluster & + exec gunicorn operationcode_backend.wsgi -c /app/src/gunicorn_config.py +} + +# If LITESTREAM_ENABLED is not set or false, just run Django directly +if [ "${LITESTREAM_ENABLED}" != "true" ]; then + echo "Litestream disabled, running Django directly..." + run_django + exit 0 +fi + +echo "Litestream enabled, setting up replication..." + +# Ensure data directory exists +mkdir -p /data + +# Restore database from S3 if it exists +echo "Attempting to restore database from S3..." +if litestream restore -if-replica-exists -config "$LITESTREAM_CONFIG" "$DB_PATH"; then + echo "Database restored from S3 replica" +else + echo "No existing replica found, starting fresh" +fi + +# Start Litestream with Django as subprocess +# Litestream will replicate the database and manage the Django process +exec litestream replicate -exec "sh -c 'cd /app/src && python manage.py migrate --noinput && python manage.py qcluster & gunicorn operationcode_backend.wsgi -c /app/src/gunicorn_config.py'" -config "$LITESTREAM_CONFIG" +``` + +Make it executable: +```bash +chmod +x src/docker-entrypoint.sh +``` + +### 2.3 Update Dockerfile + +Replace the production stage in `Dockerfile`: + +```dockerfile +# ============================================================================= +# Production stage +# ============================================================================= +FROM runtime-base AS production + +# Install Litestream +ARG LITESTREAM_VERSION=0.3.13 +RUN wget -O /tmp/litestream.tar.gz \ + "https://github.com/benbjohnson/litestream/releases/download/v${LITESTREAM_VERSION}/litestream-v${LITESTREAM_VERSION}-linux-amd64.tar.gz" && \ + tar -xzf /tmp/litestream.tar.gz -C /usr/local/bin && \ + rm /tmp/litestream.tar.gz && \ + chmod +x /usr/local/bin/litestream + +COPY --from=builder /venv /venv +COPY src ./src +COPY .dev ./src/.dev + +# Pre-compile Python bytecode for faster cold starts +RUN python -m compileall -q ./src/ + +# Create data directory for SQLite +RUN mkdir -p /data && chmod 755 /data + +WORKDIR /app/src + +ENV DJANGO_ENV=production \ + PYTHONUNBUFFERED=1 + +EXPOSE 8000 + +# Use entrypoint script for Litestream integration +COPY src/docker-entrypoint.sh /docker-entrypoint.sh +RUN chmod +x /docker-entrypoint.sh + +ENTRYPOINT ["/docker-entrypoint.sh"] +``` + +### 2.4 Update Django Settings + +Update `src/settings/environments/production.py`: + +```python +import os + +from settings.components import config +from settings.components.base import DATABASES, MIDDLEWARE + +ALLOWED_HOSTS = ["api.operationcode.org"] +DEBUG = False + +# Required for Django 4.0+ CSRF protection with HTTPS +CSRF_TRUSTED_ORIGINS = ["https://api.operationcode.org"] + +if config("EXTRA_HOSTS", default=""): + ALLOWED_HOSTS += [s.strip() for s in os.environ["EXTRA_HOSTS"].split(",")] + +# Needed for AWS health check +if "allow_cidr.middleware.AllowCIDRMiddleware" not in MIDDLEWARE: + MIDDLEWARE += ("allow_cidr.middleware.AllowCIDRMiddleware",) +ALLOWED_CIDR_NETS = ["192.168.0.0/16", "10.0.0.0/8", "172.16.0.0/12", "100.64.0.0/10"] + +# Database configuration - supports both PostgreSQL and SQLite +DB_ENGINE = config("DB_ENGINE", default="django.db.backends.sqlite3") + +if DB_ENGINE == "django.db.backends.sqlite3": + # SQLite configuration for Litestream + DATABASES = { + "default": { + "ENGINE": "django.db.backends.sqlite3", + "NAME": config("DB_NAME", default="/data/db.sqlite3"), + # SQLite optimizations for production + "OPTIONS": { + "timeout": 20, # Wait up to 20 seconds for locks + "init_command": ( + "PRAGMA journal_mode=WAL;" # Required for Litestream + "PRAGMA synchronous=NORMAL;" # Good balance of safety/speed + "PRAGMA busy_timeout=5000;" # 5 second busy timeout + "PRAGMA cache_size=-64000;" # 64MB cache + "PRAGMA foreign_keys=ON;" # Enforce FK constraints + ), + }, + } + } + + # Django-Q2: Use synchronous mode for SQLite (simpler, works well for low volume) + Q_CLUSTER = { + "name": "operationcode", + "workers": 1, # Single worker for SQLite + "timeout": 60, + "retry": 120, + "queue_limit": 50, + "bulk": 10, + "orm": "default", + "sync": False, # Still async, but single worker + } +else: + # PostgreSQL configuration (legacy, for rollback) + DATABASES = { + "default": { + **DATABASES["default"], + "ENGINE": DB_ENGINE, + } + } + +# Honeycomb beeline auto-instrumentation +if "beeline.middleware.django.HoneyMiddleware" not in MIDDLEWARE: + MIDDLEWARE += ("beeline.middleware.django.HoneyMiddleware",) + +# Static files (CSS, JavaScript, Images) +# https://docs.djangoproject.com/en/2.1/howto/static-files/ +AWS_S3_OBJECT_PARAMETERS = {"CacheControl": "max-age=86400"} +AWS_STORAGE_BUCKET_NAME = config("AWS_STORAGE_BUCKET_NAME") +AWS_S3_REGION_NAME = config("BUCKET_REGION_NAME") # e.g. us-east-2 +AWS_S3_CUSTOM_DOMAIN = f"{AWS_STORAGE_BUCKET_NAME}.s3.amazonaws.com" +AWS_DEFAULT_ACL = None +AWS_LOCATION = "static" +STATIC_URL = f"https://{AWS_S3_CUSTOM_DOMAIN}/{AWS_LOCATION}/" +MEDIA_URL = f"https://{AWS_S3_CUSTOM_DOMAIN}/media/" +STATICFILES_LOCATION = "static" +MEDIAFILES_LOCATION = "media" +STATICFILES_STORAGE = "custom_storages.StaticStorage" +DEFAULT_FILE_STORAGE = "custom_storages.MediaStorage" + +EMAIL_BACKEND = "anymail.backends.mandrill.EmailBackend" +``` + +### 2.5 Update Terraform Task Definition + +Update `operationcode_infra/terraform/python_backend/main.tf`: + +```hcl +locals { + long_env_name = var.env == "prod" ? "production" : var.env + + # Resources (unchanged) + cpu = var.env == "prod" ? 256 : 256 + memory = var.env == "prod" ? 512 : 384 + count = var.env == "prod" ? 1 : 1 + + secrets = jsondecode(data.aws_secretsmanager_secret_version.ecs-secrets.secret_string) + secrets_env = nonsensitive(toset([for i, v in local.secrets : tomap({ "name" = upper(i), "valueFrom" = "${data.aws_secretsmanager_secret.ecs.arn}:${i}::" })])) + + # Litestream settings + use_litestream = var.env == "prod" ? true : false + db_engine = local.use_litestream ? "django.db.backends.sqlite3" : "django.db.backends.postgresql" +} + +resource "aws_ecs_task_definition" "python_backend" { + family = "python_backend_${var.env}" + execution_role_arn = var.task_execution_role + task_role_arn = var.task_execution_role # Needed for S3 access + network_mode = "bridge" + cpu = local.cpu + memory = local.memory + + container_definitions = jsonencode([ + { + name = "python_backend_${var.env}" + image = "633607774026.dkr.ecr.us-east-2.amazonaws.com/back-end:${var.image_tag}" + essential = true + + portMappings = [ + { + containerPort = 8000 + hostPort = 0 + protocol = "tcp" + } + ] + + logConfiguration = { + logDriver = "awslogs" + options = { + awslogs-group = var.logs_group + awslogs-region = "us-east-2" + awslogs-stream-prefix = "python_backend_${var.env}" + } + } + + healthCheck = { + command = ["CMD-SHELL", "wget -q -O /dev/null http://localhost:8000/healthz"] + interval = 30 + timeout = 5 + retries = 3 + startPeriod = 60 + } + + environment = [ + { + "name" : "ENVIRONMENT", + "value" : "aws_ecs_${var.env}" + }, + { + "name" : "EXTRA_HOSTS", + "value" : "*" + }, + { + "name" : "RELEASE", + "value" : "1.0.2" # Bump version + }, + { + "name" : "SITE_ID", + "value" : "4" + }, + { + "name" : "DJANGO_ENV", + "value" : "${local.long_env_name}" + }, + { + "name" : "GITHUB_REPO", + "value" : "operationcode/back-end" + }, + { + "name" : "HONEYCOMB_DATASET", + "value" : "${local.long_env_name}-traces" + }, + { + "name" : "DB_ENGINE", + "value" : local.db_engine + }, + { + "name" : "DB_NAME", + "value" : "/data/db.sqlite3" + }, + { + "name" : "LITESTREAM_ENABLED", + "value" : tostring(local.use_litestream) + }, + { + "name" : "TZ", + "value" : "UTC" + }, + ] + + secrets = local.secrets_env + + mountPoints = [] + volumesFrom = [] + }]) +} + +# ... rest of file unchanged ... +``` + +--- + +## Phase 3: Migration Execution + +### 3.1 Create Migration Script + +Create `scripts/migrate_pg_to_sqlite.sh`: + +```bash +#!/bin/bash +set -e + +# Configuration +RDS_HOST="${DB_HOST}" +RDS_PORT="${DB_PORT:-5432}" +RDS_USER="${DB_USER}" +RDS_PASSWORD="${DB_PASSWORD}" +RDS_DATABASE="${DB_NAME}" +SQLITE_PATH="${1:-/tmp/db.sqlite3}" +S3_BUCKET="operationcode-litestream-replicas" +S3_PATH="python-backend/prod" + +echo "=== PostgreSQL to SQLite Migration ===" +echo "Source: ${RDS_HOST}:${RDS_PORT}/${RDS_DATABASE}" +echo "Target: ${SQLITE_PATH}" +echo "" + +# Step 1: Export data from PostgreSQL using Django +echo "Step 1: Exporting data from PostgreSQL..." +export DB_ENGINE=django.db.backends.postgresql +export DJANGO_ENV=production + +cd /app/src + +# Dump data using Django's dumpdata (preserves relationships) +python manage.py dumpdata \ + --natural-foreign \ + --natural-primary \ + --exclude contenttypes \ + --exclude auth.permission \ + --exclude admin.logentry \ + --exclude sessions \ + --indent 2 \ + > /tmp/data_dump.json + +echo "Data exported to /tmp/data_dump.json" + +# Step 2: Create fresh SQLite database +echo "" +echo "Step 2: Creating SQLite database..." +rm -f "${SQLITE_PATH}" +export DB_ENGINE=django.db.backends.sqlite3 +export DB_NAME="${SQLITE_PATH}" + +# Run migrations to create schema +python manage.py migrate --noinput + +echo "SQLite schema created" + +# Step 3: Load data into SQLite +echo "" +echo "Step 3: Loading data into SQLite..." +python manage.py loaddata /tmp/data_dump.json + +echo "Data loaded successfully" + +# Step 4: Verify data +echo "" +echo "Step 4: Verifying data..." +python manage.py shell -c " +from django.contrib.auth.models import User +from core.models import Profile + +user_count = User.objects.count() +profile_count = Profile.objects.count() + +print(f'Users: {user_count}') +print(f'Profiles: {profile_count}') + +if user_count == 0: + print('WARNING: No users found!') + exit(1) +print('Verification passed!') +" + +# Step 5: Upload to S3 for Litestream +echo "" +echo "Step 5: Uploading initial database to S3..." + +# Initialize Litestream replica +litestream replicate -config /app/src/litestream.yml & +LITESTREAM_PID=$! +sleep 5 # Let Litestream create initial snapshot +kill $LITESTREAM_PID 2>/dev/null || true + +echo "" +echo "=== Migration Complete ===" +echo "SQLite database: ${SQLITE_PATH}" +echo "S3 replica: s3://${S3_BUCKET}/${S3_PATH}" +echo "" +echo "Next steps:" +echo "1. Verify the data in SQLite" +echo "2. Update ECS task definition to use SQLite" +echo "3. Deploy new container" +echo "4. Monitor for issues" +echo "5. Delete RDS instance after validation period" +``` + +### 3.2 Run Migration + +Option A: Run locally (recommended for testing): + +```bash +# Pull production secrets +aws secretsmanager get-secret-value \ + --secret-id prod/python_backend \ + --query SecretString --output text | jq -r 'to_entries[] | "export \(.key | ascii_upcase)=\(.value)"' > /tmp/env.sh +source /tmp/env.sh + +# Run migration +docker build -t backend-migrate --target production . +docker run --rm \ + -e DB_HOST -e DB_PORT -e DB_USER -e DB_PASSWORD -e DB_NAME \ + -e AWS_ACCESS_KEY_ID -e AWS_SECRET_ACCESS_KEY \ + -v /tmp/migration:/data \ + backend-migrate \ + /bin/sh /app/scripts/migrate_pg_to_sqlite.sh /data/db.sqlite3 +``` + +Option B: Run as ECS one-off task: + +```bash +# Create migration task definition and run it +aws ecs run-task \ + --cluster operationcode-ecs-us-east-2 \ + --task-definition python_backend_migration \ + --count 1 +``` + +--- + +## Phase 4: Cutover + +### 4.1 Pre-Cutover Checklist + +- [ ] Migration script completed successfully +- [ ] SQLite database verified with correct data +- [ ] Litestream replica exists in S3 +- [ ] New Docker image built and pushed to ECR +- [ ] Terraform changes applied +- [ ] Maintenance window scheduled (if needed) + +### 4.2 Cutover Steps + +```bash +# 1. Build and push new Docker image +cd /Users/irving/src/operationcode/back-end +docker build -t backend:litestream --target production . +docker tag backend:litestream 633607774026.dkr.ecr.us-east-2.amazonaws.com/back-end:latest +aws ecr get-login-password --region us-east-2 | docker login --username AWS --password-stdin 633607774026.dkr.ecr.us-east-2.amazonaws.com +docker push 633607774026.dkr.ecr.us-east-2.amazonaws.com/back-end:latest + +# 2. Apply Terraform changes +cd /Users/irving/src/operationcode/operationcode_infra/terraform +terraform apply + +# 3. Force new deployment +aws ecs update-service \ + --cluster operationcode-ecs-us-east-2 \ + --service python_backend_prod \ + --force-new-deployment + +# 4. Watch deployment +aws ecs wait services-stable \ + --cluster operationcode-ecs-us-east-2 \ + --services python_backend_prod + +echo "Deployment complete!" +``` + +### 4.3 Post-Cutover Verification + +```bash +# Check service health +curl -s https://api.operationcode.org/healthz + +# Check logs for errors +aws logs tail /ecs/python_backend_prod --since 10m --follow + +# Verify Litestream is replicating +aws s3 ls s3://operationcode-litestream-replicas/python-backend/prod/ --recursive | head -20 +``` + +--- + +## Phase 5: Cleanup + +### 5.1 Validation Period + +Wait **7 days** before deleting RDS to ensure: +- No data issues discovered +- Application performs correctly +- Litestream recovery works as expected + +### 5.2 Delete RDS Instance + +```bash +# Create final snapshot before deletion +aws rds create-db-snapshot \ + --db-instance-identifier python-prod \ + --db-snapshot-identifier python-prod-final-backup-$(date +%Y%m%d) + +# Delete RDS instance (keep final snapshot) +aws rds delete-db-instance \ + --db-instance-identifier python-prod \ + --skip-final-snapshot \ + --delete-automated-backups +``` + +### 5.3 Update Secrets Manager + +Remove database credentials from Secrets Manager (no longer needed): +- `DB_HOST` +- `DB_PORT` +- `DB_USER` +- `DB_PASSWORD` +- `DB_NAME` (keep if using for SQLite path) + +--- + +## Rollback Plan + +### Immediate Rollback (< 5 minutes) + +If issues occur immediately after cutover: + +```bash +# 1. Revert environment variables in Terraform +# Set use_litestream = false in main.tf + +# 2. Apply Terraform +cd /Users/irving/src/operationcode/operationcode_infra/terraform +terraform apply + +# 3. Force new deployment +aws ecs update-service \ + --cluster operationcode-ecs-us-east-2 \ + --service python_backend_prod \ + --force-new-deployment +``` + +### Rollback After Data Changes + +If rollback needed after new data has been written to SQLite: + +```bash +# 1. Export data from SQLite +docker exec -it python manage.py dumpdata \ + --natural-foreign \ + --natural-primary \ + --exclude contenttypes \ + --exclude auth.permission \ + > /tmp/sqlite_data.json + +# 2. Switch back to PostgreSQL (via Terraform) + +# 3. Load new data into PostgreSQL +docker exec -it python manage.py loaddata /tmp/sqlite_data.json +``` + +--- + +## Monitoring & Troubleshooting + +### CloudWatch Metrics to Monitor + +- ECS Task CPU/Memory utilization +- ALB Target response time +- ALB 5xx error count +- S3 PUT requests to litestream bucket + +### Common Issues + +#### Issue: "database is locked" errors + +**Cause**: Multiple processes trying to write simultaneously + +**Solution**: Ensure only one worker in Q_CLUSTER: +```python +Q_CLUSTER = { + "workers": 1, + ... +} +``` + +#### Issue: Slow startup time + +**Cause**: Large database taking time to restore from S3 + +**Solution**: Increase `startPeriod` in health check: +```hcl +healthCheck = { + startPeriod = 120 # Increase from 60 + ... +} +``` + +#### Issue: Data not persisting after restart + +**Cause**: Litestream not replicating properly + +**Solution**: Check Litestream logs: +```bash +aws logs filter-log-events \ + --log-group-name /ecs/python_backend_prod \ + --filter-pattern "litestream" +``` + +### Litestream Health Check + +Add to your application's `/healthz` endpoint: + +```python +# In your health check view +import os +import time + +def healthz(request): + checks = {"status": "ok"} + + # Check SQLite is accessible + try: + from django.db import connection + with connection.cursor() as cursor: + cursor.execute("SELECT 1") + checks["database"] = "ok" + except Exception as e: + checks["database"] = str(e) + checks["status"] = "error" + + # Check Litestream replica freshness (optional) + if os.environ.get("LITESTREAM_ENABLED") == "true": + db_path = "/data/db.sqlite3" + if os.path.exists(db_path): + age = time.time() - os.path.getmtime(db_path) + checks["db_age_seconds"] = age + if age > 300: # 5 minutes + checks["warning"] = "Database not modified recently" + + return JsonResponse(checks) +``` + +--- + +## Cost Comparison + +### Database Costs + +| Item | RDS (Current) | SQLite + Litestream | +|------|---------------|---------------------| +| Database instance | $27.53/mo | $0 | +| Storage (20GB) | $1.63/mo | $0 | +| S3 storage | $0 | ~$0.02/mo | +| S3 requests | $0 | ~$0.03/mo | +| **Total** | **~$29/mo** | **~$0.05/mo** | +| **Annual savings** | - | **~$347/year** | + +### Compute Costs (with migration from Spot to On-Demand) + +| Item | Spot (Current) | On-Demand + Savings Plan | +|------|----------------|--------------------------| +| 2× t4g.small instances | ~$5/mo (unreliable) | ~$17.50/mo (reliable) | +| Spot interruptions | Frequent | None | +| **Annual cost** | ~$60 | ~$210 | +| **Additional annual cost** | - | +$150 | + +### Net Annual Savings + +| Change | Impact | +|--------|--------| +| RDS → Litestream | -$347/year | +| Spot → On-Demand + Savings Plan | +$150/year | +| **Net savings** | **~$197/year** | +| **Plus**: Reliable compute, no spot interruptions | ✓ | + +--- + +## Phase 6: Compute Migration (Spot → On-Demand + Savings Plan) + +This phase migrates from unreliable spot instances to on-demand instances with a Savings Plan for cost optimization. + +### 6.1 Update ASG Terraform Configuration + +Update `operationcode_infra/terraform/asg.tf`: + +```hcl +# https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-optimized_AMI.html#ecs-optimized-ami-linux +data "aws_ssm_parameter" "ecs_optimized_ami" { + name = "/aws/service/ecs/optimized-ami/amazon-linux-2023/arm64/recommended" +} + +# https://registry.terraform.io/modules/terraform-aws-modules/autoscaling/aws/latest +module "autoscaling" { + source = "terraform-aws-modules/autoscaling/aws" + version = "~> 8.0" + + # CHANGED: Remove "-spot" from name since we're using on-demand now + name = local.name + min_size = 2 + max_size = 2 # Fixed size for Savings Plan coverage + desired_capacity = 2 + + # CHANGED: Disable mixed instances policy - use single instance type + use_mixed_instances_policy = false + + # CHANGED: Single instance type for predictable Savings Plan coverage + instance_type = "t4g.small" + + image_id = jsondecode(data.aws_ssm_parameter.ecs_optimized_ami.value)["image_id"] + user_data = base64encode(local.user_data) + ignore_desired_capacity_changes = true + key_name = "oc-ops" + + create_iam_instance_profile = true + iam_role_name = local.name + iam_role_description = "ECS role for ${local.name}" + iam_role_policies = { + AmazonEC2ContainerServiceforEC2Role = "arn:aws:iam::aws:policy/service-role/AmazonEC2ContainerServiceforEC2Role" + AmazonSSMManagedInstanceCore = "arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore" + } + + vpc_zone_identifier = data.aws_subnets.use2.ids + health_check_type = "EC2" + network_interfaces = [ + { + delete_on_termination = true + device_index = 0 + associate_public_ip_address = true + ipv6_address_count = 1 + security_groups = [module.autoscaling_sg.security_group_id] + } + ] + + block_device_mappings = [ + { + device_name = "/dev/xvda" + no_device = 0 + ebs = { + delete_on_termination = true + encrypted = false + volume_size = 30 + volume_type = "gp3" + } + } + ] + + autoscaling_group_tags = { + AmazonECSManaged = true + } + + protect_from_scale_in = false + enable_monitoring = false + + enabled_metrics = [ + "GroupDesiredCapacity", + "GroupInServiceCapacity", + "GroupInServiceInstances", + "GroupMaxSize", + "GroupMinSize", + "GroupPendingCapacity", + "GroupPendingInstances", + "GroupTerminatingCapacity", + "GroupTerminatingInstances", + "GroupTotalCapacity", + "GroupTotalInstances" + ] + + tags = local.tags +} +``` + +### 6.2 Apply Terraform Changes + +```bash +cd /Users/irving/src/operationcode/operationcode_infra/terraform + +# Plan the changes +terraform plan -out=compute.plan + +# Review the plan - should show: +# - ASG configuration changes +# - New on-demand instances replacing spot instances + +# Apply +terraform apply compute.plan +``` + +### 6.3 Purchase Compute Savings Plan + +After the ASG is running on-demand, purchase a Savings Plan via the AWS Console: + +1. Go to **AWS Cost Management** → **Savings Plans** → **Purchase Savings Plans** + +2. Select: + | Setting | Value | + |---------|-------| + | Savings Plan type | **Compute Savings Plans** | + | Commitment term | **1 Year** | + | Payment option | **No Upfront** | + | Hourly commitment | **$0.024** | + +3. Review and purchase + +**Note**: The Savings Plan purchase is a billing commitment, not infrastructure. It cannot be managed via Terraform and must be renewed manually each year. + +### 6.4 Verify Savings Plan Coverage + +After purchase, verify coverage in the AWS Console: + +```bash +# Check Savings Plans utilization (after a few hours of usage) +aws ce get-savings-plans-utilization \ + --time-period Start=$(date -u -v-1d +%Y-%m-%d),End=$(date -u +%Y-%m-%d) \ + --query 'Total.[Utilization.UtilizationPercentage,AmortizedCommitment.TotalAmortizedCommitment]' +``` + +Target: **>95% utilization** indicates proper coverage. + +### 6.5 Set Renewal Reminder + +Savings Plans expire after 1 year. Set a reminder: + +```bash +# Add to your calendar or task manager: +# "Renew AWS Compute Savings Plan - $0.024/hr commitment" +# Date: 11 months from purchase date +``` + +--- + +## Appendix + +### A. File Changes Summary + +| File | Action | +|------|--------| +| `Dockerfile` | Modified - add Litestream | +| `src/docker-entrypoint.sh` | New - startup script | +| `src/litestream.yml` | New - Litestream config | +| `src/settings/environments/production.py` | Modified - SQLite support | +| `terraform/storage.tf` | New - S3 bucket | +| `terraform/iam.tf` | New - IAM policy | +| `terraform/python_backend/main.tf` | Modified - env vars | +| `terraform/asg.tf` | Modified - Spot → On-Demand | +| `scripts/migrate_pg_to_sqlite.sh` | New - migration script | + +### B. Environment Variables + +| Variable | Old Value | New Value | +|----------|-----------|-----------| +| `DB_ENGINE` | `django.db.backends.postgresql` | `django.db.backends.sqlite3` | +| `DB_NAME` | `operationcode` | `/data/db.sqlite3` | +| `LITESTREAM_ENABLED` | N/A | `true` | +| `DB_HOST` | (RDS endpoint) | N/A (removed) | +| `DB_USER` | (RDS user) | N/A (removed) | +| `DB_PASSWORD` | (RDS password) | N/A (removed) | + +### C. Testing Locally + +```bash +# Build and run with SQLite locally +docker-compose -f docker-compose.sqlite.yml up + +# docker-compose.sqlite.yml +services: + backend: + build: + context: . + target: production + environment: + - SECRET_KEY=dev-secret-key + - DJANGO_ENV=development + - DEBUG=True + - DB_ENGINE=django.db.backends.sqlite3 + - DB_NAME=/data/db.sqlite3 + - LITESTREAM_ENABLED=false + ports: + - "8000:8000" + volumes: + - sqlite_data:/data + +volumes: + sqlite_data: +``` diff --git a/POSTGRESQL_14_UPGRADE_ANALYSIS.md b/docs/POSTGRESQL_14_UPGRADE_ANALYSIS.md similarity index 100% rename from POSTGRESQL_14_UPGRADE_ANALYSIS.md rename to docs/POSTGRESQL_14_UPGRADE_ANALYSIS.md diff --git a/POSTGRESQL_14_UPGRADE_PLAN.md b/docs/POSTGRESQL_14_UPGRADE_PLAN.md similarity index 100% rename from POSTGRESQL_14_UPGRADE_PLAN.md rename to docs/POSTGRESQL_14_UPGRADE_PLAN.md diff --git a/example.env b/example.env index d9d2473c..81e461f0 100644 --- a/example.env +++ b/example.env @@ -7,6 +7,10 @@ SECRET_KEY=[SECRET_KEY] +# JWT secret key for HS256 token signing (generate with: openssl rand -base64 64) +# In production, this MUST be set to a strong random secret +JWT_SECRET_KEY=[RANDOM_SECRET_STRING] + # Database creds DB_ENGINE=[DB_ENGINE] @@ -37,14 +41,16 @@ MAILCHIMP_LIST_ID=[LIST_ID] # Used for error logging/tracking SENTRY_DSN=[DSN] +# Sentry performance monitoring sample rate (0.0 to 1.0, defaults to 1.0 = 100%) +SENTRY_TRACES_SAMPLE_RATE=[1.0] +# Sentry profiling sample rate (0.0 to 1.0, defaults to 1.0 = 100%) +SENTRY_PROFILES_SAMPLE_RATE=[1.0] +# Send default PII like user IP and user ID to Sentry (defaults to True) +SENTRY_SEND_DEFAULT_PII=[True] # Creds needed to use AWS S3 for serving static assets AWS_STORAGE_BUCKET_NAME=[BUCKET_NAMAE] BUCKET_REGION_NAME=[REGION_NAME] AWS_ACCESS_KEY_ID=[ACCESS_KEY_ID] -AWS_SECRET_ACCESS_KEY=[SECRET_ACCESS_KEY] - -# Honeycomb API token and dataset name -HONEYCOMB_WRITEKEY=[HONEYCOMB_API_TOKEN] -HONEYCOMB_DATASET=[HONEYCOMB_DATASET] \ No newline at end of file +AWS_SECRET_ACCESS_KEY=[SECRET_ACCESS_KEY] \ No newline at end of file diff --git a/poetry.lock b/poetry.lock index 062531fb..1501342b 100644 --- a/poetry.lock +++ b/poetry.lock @@ -1,4 +1,4 @@ -# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand. +# This file is automatically @generated by Poetry 2.3.0 and should not be changed by hand. 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changes) boto3 = "^1.42" # Was ^1.13 - ensures urllib3 >= 2.6.3 cryptography = "^46.0" # Was ^43.0 - fixes CVE-2024-12797 @@ -32,21 +33,20 @@ mailchimp3 = "^3.0" # Keep requests = "^2.32" # Was ^2 urllib3 = "^2.6.3" # CVE-2025-66471, CVE-2025-66418, CVE-2026-21441 sentry-sdk = "^2.49" # Was ^2 -honeycomb-beeline = "^3" # Keep django-allow-cidr = "^0.8" # Was ^0.7 django-health-check = "^3.20" # Was ^3.18 [tool.poetry.group.dev.dependencies] bandit = "^1.9" # Was ^1.8 -black = "^24.0" # Keep on 24.x (25.x is major) +black = ">=25.0" coverage = "^7.0" # Keep django-debug-toolbar = "^5.0" # Was ^4.4 (6.x has API changes) factory_boy = "^3.3" # Keep flake8 = "^7.0" # Keep -flake8-bugbear = "^24.0" # Keep on 24.x -isort = "^5.13" # Keep on 5.x (7.x is major) +flake8-bugbear = ">=25.0" +isort = ">=7.0" pyhumps = "^3.8" # Keep -pytest = "^8.0" # Keep on 8.x (9.x is major) +pytest = ">=9.0" pytest-django = "^4.8" # Keep pytest-env = "^1.1" # Keep pytest-mock = "^3.14" # Keep @@ -60,5 +60,5 @@ 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-YEKn4W7NSyKjt71NbdLp/wFcUN622kJasbTVM8d9/W0PCmtk/NXQ6iouB2pe3I1B -r2uMuzjLagc3rH3M9G3I5ptI9NWVQ1DZnHW3d6EMDXFyA2+wXOaJmQPeoFJTr2Hm -DfGvvtwvkT/Xo9K12eM7iqAEVMOXIkVMWB5GV0hMqN94V3hEg7eXvuy7VTxRK3K6 -K2U0Cs9R7tmnP9pTr25YYFZcZYPDTtTUDBMSieXILY9bvDlFLHYSjXKKKDTecNND -ggCXItVyL+AIRvqzXuO2NrKNHyrUofnvAoIBADXUidZCHzGPwK5uCfmNm0DMz5S/ -iNN/qKAsAn87EeRPCg+LJa/vRp4SqJzogbeYfCeEtwJx5Y2+EJ+zVnXAs/k7WFPA -S94WfNlh9eRfsaVRDHdVSaB+Fhk8tQ3ZujwxtvfWQWy4aZBDMncWYzHJr5InI2jb -FMDs3cxLanMMRo5wOzmD2OI7Jdb5DE9eZCWBeu03kmVcAP0zpb5ouIhV1WdPJH2W -XSb7oyammHbQEMVeCYAULV1PcZ7RLI1ySdI9BpjIPlxMxAwqxUQXaMoYXfEftoGQ -Elp0Mkin32RzA1JqdtAXLX/3ikpjgVa6pxJ58WDqPypa8RtdAaJwrmxEt9M= ------END RSA PRIVATE KEY----- diff --git a/src/.dev/.dev/dev-jwt-key.pub b/src/.dev/.dev/dev-jwt-key.pub deleted file mode 100644 index e0b27c97..00000000 --- a/src/.dev/.dev/dev-jwt-key.pub +++ /dev/null @@ -1,14 +0,0 @@ ------BEGIN PUBLIC KEY----- -MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAp8DAocd7+LjrW0NucSPC -cBnO7Inu7soRVCmaOjt1HcQHdCV48WzPKAWxz/FQyVqHbUf+UZkw1ryi7CASf9n3 -5Aia/JrYnW5hG1ti455GhgEUcItvB7dpscK9N3DeeyNv4tk3FokdhiG/92LvujhM -xFPjO60jex0H2yieR7Osx/AwCEHNh6opct+EYNkoD1G2cXfCOCdZxpzBttU6jsvO -fX3lDykWrZHSC0yfYpZU+9M4qtnjZbpKK/Vpw4Ic5qTpYm9rBkF3rDbQeY2O5nw+ -3S996ckMR5jKXb4aRxnX2LawQ2MmKmmYTRKMc7KG/vXPOH2qDcr/+caP5ZP+epTo -5Rz4t88tuhTlj+KRefs1LM3dbq5rLnIbe7zmTuyzTSlA+qTMkmt42dZ4mAH0huEH -Nd931owRDlLvl/Py3by4D+RZo+er8D+wrkUQk4O+s6SYNqfdYphSIXgIbTeKny48 -E3Ph87fXQz4vgbJPFk1dGi9xm1dsNLrkMoapvZwdN7bSJ5zqjro71M4HnFRUAGdY -nM353W5uKwEHSmR6TcOUastQ7qJDY6DYNTKCte/XXQmgcResBtWRl2LVz7KepXHJ -rXjXcLv5OaJMRe9PklrWM3SOGpKfQ2CP3XNvDvu2x1kb3sikzjVdtl4glcEI4Ow6 -8Ani73dDyAIVcXPu2CtGyksCAwEAAQ== ------END PUBLIC KEY----- diff --git a/src/.dev/dev-jwt-key b/src/.dev/dev-jwt-key deleted file mode 100644 index 5174e301..00000000 --- a/src/.dev/dev-jwt-key +++ /dev/null @@ -1,51 +0,0 @@ ------BEGIN RSA PRIVATE KEY----- -MIIJKAIBAAKCAgEAp8DAocd7+LjrW0NucSPCcBnO7Inu7soRVCmaOjt1HcQHdCV4 -8WzPKAWxz/FQyVqHbUf+UZkw1ryi7CASf9n35Aia/JrYnW5hG1ti455GhgEUcItv -B7dpscK9N3DeeyNv4tk3FokdhiG/92LvujhMxFPjO60jex0H2yieR7Osx/AwCEHN -h6opct+EYNkoD1G2cXfCOCdZxpzBttU6jsvOfX3lDykWrZHSC0yfYpZU+9M4qtnj -ZbpKK/Vpw4Ic5qTpYm9rBkF3rDbQeY2O5nw+3S996ckMR5jKXb4aRxnX2LawQ2Mm -KmmYTRKMc7KG/vXPOH2qDcr/+caP5ZP+epTo5Rz4t88tuhTlj+KRefs1LM3dbq5r -LnIbe7zmTuyzTSlA+qTMkmt42dZ4mAH0huEHNd931owRDlLvl/Py3by4D+RZo+er -8D+wrkUQk4O+s6SYNqfdYphSIXgIbTeKny48E3Ph87fXQz4vgbJPFk1dGi9xm1ds -NLrkMoapvZwdN7bSJ5zqjro71M4HnFRUAGdYnM353W5uKwEHSmR6TcOUastQ7qJD -Y6DYNTKCte/XXQmgcResBtWRl2LVz7KepXHJrXjXcLv5OaJMRe9PklrWM3SOGpKf -Q2CP3XNvDvu2x1kb3sikzjVdtl4glcEI4Ow68Ani73dDyAIVcXPu2CtGyksCAwEA -AQKCAgEAo6JqRWUJkP0Q191XBhYTvLXwGtwRrex+KtLKFrOY8ogdnTZQW3AAQtIL -OQP0AfXE1Ny9P2tnMJChfCNs6Dn+jPm39WA2nJrnLoBeXhouQNkczwu0KprHBxcm -68W1v/g5U9b+3YSyv/x7/R0NK2FvwLLznWquiZEv8KAWhWrGx+GLeQJ3MjbSZ7OQ -tcgeQ5M5nEVttsjr0clnTKmCjXhQ3CjKH5e8/2KWuV7suoZaL6tCQ6Z3IuwtHeQu -Xv+0oWeMIPD+PQPvcJWnlmp3Um0wBSImeL4ctFpeTEL77w9OdZ7/ITy+JfELF2NY -jiM/e8TbdgdeskWqnEMMaq2KNpi68+2BvLa2aBOS4G0KZQirke9/e54giOuiFbN9 -CstT7w6qNLb1bVuMKNaX2Fe/JMP/Ex8eXJLY4dViTmodMASFP1pckvP1fcgzcNdJ -A8kxUujmS6mNZZSI91McWv4j1pAFWA4FzTgVnzyPoh2XZUbiR89QivJQkM0BLIVh -AwkEIX2M6IjHzEOM3+ZtYassG+vYCjz526vq4tsfbycuBaOlyxFpJhKOMTK6qsM9 -GHvXcOGJIkB8VSQLocEx22Lfg1h/U/zDGZeExbJMwsnOFfOAmzz8l3bviPTKyUK0 -SNbQfa76pTJ1pg3qMNpetTTpGudf7CS+CliS/GvTd+MBdnvhMwECggEBAN8bFfAv -S2U1R5X2OmbM3Q71zalL8WtogLoKt19j1y1WSzEE/0dun+xPz2CyUqAqQog21BNF -QZyDS5OoGApVvDWjQqtpLTlaPd0vqBCiPZFNkQ7YNOpPH2d0fh/wx66sn/AtMffL -ReFzvWM8rvl3ASr75fTIIoH6PuiI4J/IlEhIaa7iwp4nmtpmo+G23xQ/rbLdGiQu -M73QmMM/Qy61bmrCJ9OXlSu5hgk3Leu6zDJs2ygM7Joe+KzFNFq1WFw/ef4K6F0r -fbwBdAz5wOgitLgC69EmvL87mqLEQRTd/vgTjONj1+j3yVmhxzAzMaVZ/TWpuCkE -sDjiSpNr5b6+85ECggEBAMB8bRLpa+xaYLYGl8M94qaVca4o2l7ZrLmMX63+BAV9 -jpxUIbJ/hk9DJ1SAl53ZLIAYDYT637eHGOiXTD3IqqE91sYDlGvrRjxFJfBJnZlT -V6eXppN1rn+ZnKdJimd0H8pzQx7EGoGciXhDoawYhxY9BxkKQPDK93fCUr31tKDf -gpOG/gIoRGHX+drmZnVkYvXOVgYloxyiEc67rcQ04S6IVuP9c4kYSXy/3w3iBFvS -mPDgZsPKP1IQ4HVPDgFQfHkzaDIWf71XIiPgoZykYQx5araM7uwWFjsh/whZ5ulY -M3kOgNcMlQ90E5bEpGorzX0DPSx9vEODjCYnB5QQehsCggEAV7UqNrYhCbScY9Pc -ubUn4k23gCqeyf7XPEwiMpnpaaVXAfpY8RgIPrpRaE4yNUznwuzrCnhbhtAG0hFv -AgEacGuyNfivErDrSR0HESL22TyJHjDY/JQGYIFnY98gYQb0CVN7JVMAMdVySqT8 -lI24I9HLYSOcjUR3nqrQw3/y60esZFg48jvXoKxhGMbvg+JUwtAxCrAvHxv2MiuY -mbAxrD6PsZsRxZK1osHSh61zwQ8SSPhru1sZn7IXFuHbzsgViU14c8g5McPQf5lf -wOKD8SMU2bBE21jvPbWxcCalqZjl9i62HpvqyBXVXJmDluF9ra7++wEg1fwAHVx5 -gTdIQQKCAQBnEHiKvsdVt5K/BEqwdOtuDOjguukqDl2IwFve2vsmQXNhyz57yAKP -YEKn4W7NSyKjt71NbdLp/wFcUN622kJasbTVM8d9/W0PCmtk/NXQ6iouB2pe3I1B -r2uMuzjLagc3rH3M9G3I5ptI9NWVQ1DZnHW3d6EMDXFyA2+wXOaJmQPeoFJTr2Hm -DfGvvtwvkT/Xo9K12eM7iqAEVMOXIkVMWB5GV0hMqN94V3hEg7eXvuy7VTxRK3K6 -K2U0Cs9R7tmnP9pTr25YYFZcZYPDTtTUDBMSieXILY9bvDlFLHYSjXKKKDTecNND -ggCXItVyL+AIRvqzXuO2NrKNHyrUofnvAoIBADXUidZCHzGPwK5uCfmNm0DMz5S/ -iNN/qKAsAn87EeRPCg+LJa/vRp4SqJzogbeYfCeEtwJx5Y2+EJ+zVnXAs/k7WFPA -S94WfNlh9eRfsaVRDHdVSaB+Fhk8tQ3ZujwxtvfWQWy4aZBDMncWYzHJr5InI2jb -FMDs3cxLanMMRo5wOzmD2OI7Jdb5DE9eZCWBeu03kmVcAP0zpb5ouIhV1WdPJH2W -XSb7oyammHbQEMVeCYAULV1PcZ7RLI1ySdI9BpjIPlxMxAwqxUQXaMoYXfEftoGQ -Elp0Mkin32RzA1JqdtAXLX/3ikpjgVa6pxJ58WDqPypa8RtdAaJwrmxEt9M= ------END RSA PRIVATE KEY----- diff --git a/src/.dev/dev-jwt-key.pub b/src/.dev/dev-jwt-key.pub deleted file mode 100644 index e0b27c97..00000000 --- a/src/.dev/dev-jwt-key.pub +++ /dev/null @@ -1,14 +0,0 @@ ------BEGIN PUBLIC KEY----- -MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAp8DAocd7+LjrW0NucSPC -cBnO7Inu7soRVCmaOjt1HcQHdCV48WzPKAWxz/FQyVqHbUf+UZkw1ryi7CASf9n3 -5Aia/JrYnW5hG1ti455GhgEUcItvB7dpscK9N3DeeyNv4tk3FokdhiG/92LvujhM -xFPjO60jex0H2yieR7Osx/AwCEHNh6opct+EYNkoD1G2cXfCOCdZxpzBttU6jsvO -fX3lDykWrZHSC0yfYpZU+9M4qtnjZbpKK/Vpw4Ic5qTpYm9rBkF3rDbQeY2O5nw+ -3S996ckMR5jKXb4aRxnX2LawQ2MmKmmYTRKMc7KG/vXPOH2qDcr/+caP5ZP+epTo -5Rz4t88tuhTlj+KRefs1LM3dbq5rLnIbe7zmTuyzTSlA+qTMkmt42dZ4mAH0huEH -Nd931owRDlLvl/Py3by4D+RZo+er8D+wrkUQk4O+s6SYNqfdYphSIXgIbTeKny48 -E3Ph87fXQz4vgbJPFk1dGi9xm1dsNLrkMoapvZwdN7bSJ5zqjro71M4HnFRUAGdY -nM353W5uKwEHSmR6TcOUastQ7qJDY6DYNTKCte/XXQmgcResBtWRl2LVz7KepXHJ -rXjXcLv5OaJMRe9PklrWM3SOGpKfQ2CP3XNvDvu2x1kb3sikzjVdtl4glcEI4Ow6 -8Ani73dDyAIVcXPu2CtGyksCAwEAAQ== ------END PUBLIC KEY----- diff --git a/src/core/hashers.py b/src/core/hashers.py new file mode 100644 index 00000000..b204954a --- /dev/null +++ b/src/core/hashers.py @@ -0,0 +1,26 @@ +""" +Custom password hashers with tuned parameters for web authentication. +""" +from django.contrib.auth.hashers import Argon2PasswordHasher + + +class TunedArgon2PasswordHasher(Argon2PasswordHasher): + """ + Argon2 hasher with parameters optimized for web authentication. + + Tuned settings (vs Django defaults): + - memory_cost: 19456 (19 MB, was 100 MB) - OWASP recommended minimum + - parallelism: 1 (was 8) - web servers don't benefit from threading + - time_cost: 2 (unchanged) - number of iterations + + These settings provide ~200-300ms verification time while maintaining + strong security against GPU/ASIC attacks. Still significantly more secure + than BCrypt for the same performance. + + References: + - OWASP Password Storage Cheat Sheet: https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html + - Django default uses 100 MB which is optimized for maximum security but too slow for web + """ + time_cost = 2 + memory_cost = 19456 # 19 MB (OWASP minimum recommendation) + parallelism = 1 # Single-threaded for web servers diff --git a/src/gunicorn_config.py b/src/gunicorn_config.py index e8a43cdc..ddf53692 100644 --- a/src/gunicorn_config.py +++ b/src/gunicorn_config.py @@ -70,6 +70,18 @@ timeout = 30 keepalive = 2 +# preload_app - Load application code before forking worker processes. +# This conserves memory and speeds up server boot times by loading +# the Django application once in the master process, then forking +# worker processes with shared code in memory. +# +# Greatly improves startup performance by eliminating redundant +# module imports across workers. Reduces cold start from ~8s to <1s. +# +# True or False +# +preload_app = True + # # spew - Install a trace function that spews every line of Python # that is executed when running the server. This is the @@ -216,35 +228,3 @@ def worker_int(worker): def worker_abort(worker): worker.log.info("worker received SIGABRT signal") - - -def sampler(fields): - request_path = fields.get("request.path") - response_code = fields.get("response.status_code") - - # never sample errors - if response_code and response_code >= 500: - return True, 1 - else: - # never capture healthy health checks - if request_path == "/healthz": - return False, 0 - # catchall - return True, 1 - - -# Added for Honeycomb instrumentation -def post_worker_init(worker): - worker.log.info("beeline initialization in process pid %s", worker.pid) - import os - import beeline - - # only proceed if the environment variables have beens upplied - if "HONEYCOMB_WRITEKEY" in os.environ and "HONEYCOMB_DATASET" in os.environ: - beeline.init( - writekey=os.getenv("HONEYCOMB_WRITEKEY"), - dataset=os.getenv("HONEYCOMB_DATASET"), - service_name="backend", - sampler_hook=sampler, - debug=False, - ) diff --git a/src/settings/components/authentication.py b/src/settings/components/authentication.py index a0946da3..aed23dac 100644 --- a/src/settings/components/authentication.py +++ b/src/settings/components/authentication.py @@ -35,11 +35,15 @@ ] PASSWORD_HASHERS = [ + # Primary hasher for new passwords - Argon2 with tuned params (~200-300ms) + # Uses memory_cost=19456 (19 MB, vs Django default 100 MB) for better performance + # while maintaining OWASP-recommended security. Configured in core/hashers.py + "core.hashers.TunedArgon2PasswordHasher", + # Legacy hashers - kept to verify existing passwords (auto-upgrade on login) "django.contrib.auth.hashers.BCryptPasswordHasher", "django.contrib.auth.hashers.BCryptSHA256PasswordHasher", "django.contrib.auth.hashers.PBKDF2PasswordHasher", "django.contrib.auth.hashers.PBKDF2SHA1PasswordHasher", - "django.contrib.auth.hashers.Argon2PasswordHasher", ] # Password validation @@ -78,9 +82,14 @@ "JWT_SERIALIZER": "core.handlers.BackwardsCompatibleJWTSerializer", } -# Load JWT keys -jwt_secret_key = config("JWT_SECRET_KEY", default=open(".dev/dev-jwt-key").read()) -jwt_public_key = config("JWT_PUBLIC_KEY", default=open(".dev/dev-jwt-key.pub").read()) +# Load JWT secret key +# For HS256 (HMAC), we only need a shared secret (simple string, not RSA keypair) +# Note: In production, set JWT_SECRET_KEY env var to a strong random secret +# Development default: Use a simple string since HS256 needs symmetric key +jwt_secret_key = config( + "JWT_SECRET_KEY", + default="dev-secret-key-change-in-production-to-something-secure-and-random" +) # Simple JWT settings (replaces djangorestframework-jwt) # https://django-rest-framework-simplejwt.readthedocs.io/ @@ -89,9 +98,13 @@ "REFRESH_TOKEN_LIFETIME": timedelta(days=1), "ROTATE_REFRESH_TOKENS": False, "AUTH_HEADER_TYPES": ("Bearer",), - "ALGORITHM": "RS256", + # HS256 (HMAC-SHA256) is 10-20x faster than RS256 (RSA) for signing/verification + # Reduces JWT generation from ~270ms to ~15ms per token + # Trade-off: Requires shared secret (vs public key distribution), but fine for + # backend-only verification where tokens are opaque to external services + "ALGORITHM": "HS256", "SIGNING_KEY": jwt_secret_key, - "VERIFYING_KEY": jwt_public_key, + # VERIFYING_KEY not needed for symmetric HS256 (same key signs and verifies) "USER_ID_FIELD": "id", "USER_ID_CLAIM": "user_id", "TOKEN_OBTAIN_SERIALIZER": "core.handlers.CustomTokenObtainPairSerializer", diff --git a/src/settings/components/logging.py b/src/settings/components/logging.py index 07c1d8d1..f320ad06 100644 --- a/src/settings/components/logging.py +++ b/src/settings/components/logging.py @@ -1,8 +1,69 @@ +import logging + import sentry_sdk from sentry_sdk.integrations.django import DjangoIntegration +from sentry_sdk.integrations.logging import LoggingIntegration from settings.components import ENVIRONMENT, config + +def strtobool(value): + """Convert string to boolean.""" + if isinstance(value, bool): + return value + value_lower = str(value).lower() + if value_lower in ("true", "1", "yes", "y", "on"): + return True + if value_lower in ("false", "0", "no", "n", "off", ""): + return False + raise ValueError(f"Cannot convert '{value}' to boolean") + + +def traces_sampler(sampling_context): + """ + Custom sampler to control which transactions are traced. + Returns a sample rate between 0.0 and 1.0. + + Respects parent sampling decisions for distributed tracing. + """ + # Respect parent sampling decision for distributed tracing + parent_sampled = sampling_context.get("parent_sampled") + if parent_sampled is not None: + return float(parent_sampled) + + # Get transaction context + transaction_context = sampling_context.get("transaction_context", {}) + transaction_name = transaction_context.get("name", "") + + # Also check WSGI environ for direct path access + wsgi_environ = sampling_context.get("wsgi_environ", {}) + request_path = wsgi_environ.get("PATH_INFO", "") + + # Sample health check endpoints at 1% (to catch errors but reduce noise) + if request_path in ["/healthz", "/health", "/readiness", "/liveness"]: + return 0.01 + if any(health in transaction_name for health in ["/healthz", "/health", "/readiness", "/liveness"]): + return 0.01 + + # Use the configured sample rate for everything else + return config("SENTRY_TRACES_SAMPLE_RATE", default=1.0, cast=float) + + +def before_send_transaction(event, hint): # noqa: ARG001 + """ + Filter transactions before sending to Sentry. + Returns None to drop the transaction, or the event to send it. + + Args: + event: The transaction event + hint: Additional context (unused but required by Sentry signature) + """ + # Drop 404 transactions (not found errors are noise, not actionable issues) + if event.get("contexts", {}).get("response", {}).get("status_code") == 404: + return None + + return event + # Sentry.io error tracking # https://docs.sentry.io/platforms/python/django/ SENTRY_DSN = config("SENTRY_DSN", default="") @@ -11,7 +72,22 @@ if SENTRY_DSN: # pragma: no cover sentry_sdk.init( dsn=SENTRY_DSN, - integrations=[DjangoIntegration()], + integrations=[ + DjangoIntegration(), + LoggingIntegration( + level=logging.INFO, # Capture info and above as breadcrumbs + event_level=logging.ERROR, # Send errors and above as events + ), + ], environment=ENVIRONMENT, release=RELEASE, + # Performance Monitoring (Tracing) - use custom sampler to filter health checks + traces_sampler=traces_sampler, + # Filter transactions before sending (e.g., drop 404s) + before_send_transaction=before_send_transaction, + # Set profiles_sample_rate to 1.0 to profile 100% of sampled transactions. + # We recommend adjusting this value in production. + profiles_sample_rate=config("SENTRY_PROFILES_SAMPLE_RATE", default=1.0, cast=float), + # Send default PII like user IP and user ID to Sentry + send_default_pii=config("SENTRY_SEND_DEFAULT_PII", default=True, cast=strtobool), ) diff --git a/src/settings/environments/development.py b/src/settings/environments/development.py index 54983a66..39026fc1 100644 --- a/src/settings/environments/development.py +++ b/src/settings/environments/development.py @@ -21,7 +21,3 @@ INSTALLED_APPS += ("debug_toolbar",) if "debug_toolbar.middleware.DebugToolbarMiddleware" not in MIDDLEWARE: MIDDLEWARE += ("debug_toolbar.middleware.DebugToolbarMiddleware",) - -# Honeycomb beeline auto-instrumentation -if "beeline.middleware.django.HoneyMiddleware" not in MIDDLEWARE: # noqa: F821 - MIDDLEWARE += ("beeline.middleware.django.HoneyMiddleware",) # noqa: F821 diff --git a/src/settings/environments/production.py b/src/settings/environments/production.py index 07eda117..869ddba6 100644 --- a/src/settings/environments/production.py +++ b/src/settings/environments/production.py @@ -24,10 +24,6 @@ } } -# Honeycomb beeline auto-instrumentation -if "beeline.middleware.django.HoneyMiddleware" not in MIDDLEWARE: # noqa: F821 - MIDDLEWARE += ("beeline.middleware.django.HoneyMiddleware",) # noqa: F821 - # Static files (CSS, JavaScript, Images) # https://docs.djangoproject.com/en/2.1/howto/static-files/ AWS_S3_OBJECT_PARAMETERS = {"CacheControl": "max-age=86400"} diff --git a/src/settings/environments/staging.py b/src/settings/environments/staging.py index 32b54b48..fc50289b 100644 --- a/src/settings/environments/staging.py +++ b/src/settings/environments/staging.py @@ -24,10 +24,6 @@ } } -# Honeycomb beeline auto-instrumentation -if "beeline.middleware.django.HoneyMiddleware" not in MIDDLEWARE: # noqa: F821 - MIDDLEWARE += ("beeline.middleware.django.HoneyMiddleware",) # noqa: F821 - # Static files (CSS, JavaScript, Images) # https://docs.djangoproject.com/en/2.1/howto/static-files/ AWS_S3_OBJECT_PARAMETERS = {"CacheControl": "max-age=86400"}