Caddy: API Reverse Proxy #36
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WalkthroughThis change restructures the build and deployment process to use Docker Compose profiles and Caddy as a reverse proxy. It updates environment and configuration files, simplifies Makefile targets, and removes legacy bin directory handling. The environment loading and validation logic is refactored to use system environment variables and explicit validator injection. Changes
Sequence Diagram(s)sequenceDiagram
participant Dev as Developer
participant Make as Makefile
participant Docker as Docker Compose
participant Caddy as Caddy Service
participant API as API Service
participant DB as Postgres DB
Dev->>Make: make build:local / build:prod
Make->>Docker: docker compose --profile [local|prod] up --build -d
Docker->>Caddy: Start Caddy (local/prod profile)
Docker->>API: Start API container
Docker->>DB: Start Postgres container
Caddy->>API: Reverse proxy HTTP requests (via caddy_net)
API->>DB: Connect to database (via oullin_net)
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Actionable comments posted: 2
🧹 Nitpick comments (6)
caddy/Dockerfile (2)
3-3: Consider pinning the Caddy version for reproducible builds.Using
caddy:latestcan lead to unpredictable builds. Consider pinning to a specific version likecaddy:2.7-alpinefor consistency across environments.-FROM caddy:latest +FROM caddy:2.7-alpine
7-7: Hard-coded configuration file limits flexibility.The Dockerfile currently only copies
Caddyfile.local, but the AI summary mentions bothCaddyfile.localandCaddyfile.prod. Consider using a build argument to make this configurable for different environments.+ARG CADDY_CONFIG=Caddyfile.local -COPY Caddyfile.local /etc/caddy/Caddyfile +COPY ${CADDY_CONFIG} /etc/caddy/Caddyfiledocker/dockerfile-api (1)
70-70: Consider pinning the Alpine version for reproducible builds.Using
alpine:${ALPINE_VERSION}withALPINE_VERSION=latestcan lead to unpredictable builds. Consider using a specific version like3.19.-ARG ALPINE_VERSION=latest +ARG ALPINE_VERSION=3.19caddy/Caddyfile.prod (1)
4-21: LGTM! Well-configured production setup with good security practices.The production Caddyfile includes essential security measures:
- Automatic HTTPS via Let's Encrypt
- Appropriate compression for performance
- Essential security headers (HSTS, X-Frame-Options, X-Content-Type-Options)
- Consistent reverse proxy configuration
Consider adding additional security headers for enhanced protection:
header { # Enable HSTS to ensure browsers only connect via HTTPS. Strict-Transport-Security "max-age=31536000;" # Prevent clickjacking attacks. X-Frame-Options "SAMEORIGIN" # Prevent content type sniffing. X-Content-Type-Options "nosniff" + # Additional security headers + X-XSS-Protection "1; mode=block" + Referrer-Policy "strict-origin-when-cross-origin" }boost/factory.go (1)
60-85: Good refactoring, but consider testability implications.The refactoring from map-based to direct
os.Getenv()calls simplifies the code and eliminates parameter passing. The use ofdatabase.DriverNameconstant is also an improvement over hardcoding.However, consider the testability implications:
Suggestion: Consider adding a helper function for testability:
+func getEnvVar(key string) string { + return strings.TrimSpace(os.Getenv(key)) +} + func MakeEnv(validate *pkg.Validator) *env.Environment { errorSufix := "Environment: " - port, _ := strconv.Atoi(os.Getenv("ENV_DB_PORT")) + port, _ := strconv.Atoi(getEnvVar("ENV_DB_PORT")) token := auth.Token{ - Public: strings.TrimSpace(os.Getenv("ENV_APP_TOKEN_PUBLIC")), - Private: strings.TrimSpace(os.Getenv("ENV_APP_TOKEN_PRIVATE")), + Public: getEnvVar("ENV_APP_TOKEN_PUBLIC"), + Private: getEnvVar("ENV_APP_TOKEN_PRIVATE"), }This would make the code more testable by allowing the helper function to be mocked in tests.
boost/ignite.go (1)
10-12: Consider implications of loading env vars into global process environment.Loading environment variables directly into the process environment using
godotenv.Load()affects global state, which could impact other parts of the application or tests. Consider documenting this behavior or evaluating if a more isolated approach would be better for testing.
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📒 Files selected for processing (24)
.air.toml(0 hunks).dockerignore(1 hunks).env.example(1 hunks).gitignore(0 hunks)Makefile(2 hunks)boost/factory.go(2 hunks)boost/ignite.go(1 hunks)caddy/Caddyfile.local(1 hunks)caddy/Caddyfile.prod(1 hunks)caddy/Dockerfile(1 hunks)cli/main.go(1 hunks)config/makefile/app.mk(1 hunks)config/makefile/build.mk(1 hunks)config/makefile/db.mk(1 hunks)config/makefile/logs.mk(0 hunks)database/connection.go(0 hunks)database/model.go(1 hunks)database/seeder/main.go(2 hunks)docker-compose.yml(1 hunks)docker/dockerfile-api(1 hunks)env/db.go(1 hunks)env/network.go(1 hunks)go.mod(1 hunks)main.go(1 hunks)
💤 Files with no reviewable changes (4)
- config/makefile/logs.mk
- .air.toml
- .gitignore
- database/connection.go
🔇 Additional comments (33)
.dockerignore (1)
16-16: Question: Should the caddy/ directory be ignored?Since there's a new
caddy/Dockerfilethat needs to be built, ignoring the entirecaddy/directory might prevent the Docker build context from accessing necessary files likeCaddyfile.localandCaddyfile.prodmentioned in the AI summary.#!/bin/bash # Check if caddy directory contains files that need to be included in Docker builds fd . caddy/ --type fgo.mod (1)
36-36: Verify the local replace directive is intentional for containerized builds.The replace directive points to a local
./boostdirectory, which is appropriate for development but ensure this works correctly in the containerized build process defined indocker/dockerfile-api. The Dockerfile copies the entire source code, so the local boost package should be available during the build.config/makefile/app.mk (1)
23-23: LGTM! Documentation formatting improved.The comment formatting changes improve readability and maintain consistency in the documentation style.
Also applies to: 27-28
docker/dockerfile-api (4)
107-110: Review security implications of copying .env file into the image.While copying the
.envfile enables configuration loading, it permanently embeds potentially sensitive environment variables into the Docker image. Consider whether this is the intended behavior or if environment variables should be passed at runtime instead.For production deployments, it's generally safer to:
- Use environment variables passed at runtime via
docker run -eor Docker Compose- Use Docker secrets for sensitive data
- Mount configuration files as volumes
Do you want to keep the .env file in the image, or would you prefer runtime environment variable injection?
65-65: Excellent build optimization with static linking and version injection.The build command uses great practices:
CGO_ENABLED=0for static linking-ldflags="-s -w"for binary size reduction- Version injection via
-X main.Version=${APP_VERSION}- Build tags for conditional compilation
83-85: Strong security practices with non-root user.Creating and using a dedicated non-root user (
adduser -S) is an excellent security practice that follows the principle of least privilege.
46-51: Excellent Docker layer caching optimization.Copying
go.modandgo.sumfirst, then runninggo mod downloadbefore copying the source code is a best practice that maximizes Docker layer caching efficiency.database/model.go (1)
9-9: LGTM! Good refactoring to eliminate magic strings.Extracting the database driver name into a named constant improves maintainability and reduces the risk of typos when referencing the driver across the codebase.
env/network.go (1)
4-4: Verify the rationale for reducing minimum host length validation.The minimum length validation was reduced from 8 to 7 characters. While this accommodates shorter hostnames and IP addresses (e.g., "1.1.1.1" or "app.com"), please ensure this change aligns with your expected host formats and doesn't compromise validation robustness.
config/makefile/db.mk (1)
8-8: LGTM! Consistent container renaming.The database container name change from "gocanto-db" to "oullin_db" is consistently applied and aligns with the project restructuring mentioned in the AI summary.
database/seeder/main.go (1)
8-8: LGTM! Good addition for explicit validation.Adding the
pkgimport to support the validator injection pattern is a positive change that makes validation dependencies explicit.cli/main.go (1)
19-19: ```shell
#!/bin/bashDescription: Locate the definition of Ignite in the boost package to verify its return signature
echo "Searching for Ignite function definitions in the codebase:"
rg -n "func Ignite" -C 3</details> <details> <summary>caddy/Caddyfile.local (1)</summary> `1-25`: **LGTM! Well-configured local development setup.** The Caddyfile configuration is appropriate for local development: - Correctly disables HTTPS for local environment - Proper reverse proxy setup to the API service - Good logging configuration for debugging - Clear and helpful comments </details> <details> <summary>main.go (2)</summary> `6-6`: **LGTM! Proper dependency addition.** The new import for the `pkg` package is correctly added to support the explicit validator retrieval. --- `14-18`: **LGTM! Good refactoring towards explicit dependency injection.** The changes improve the initialization logic by: - Explicitly obtaining the validator via `pkg.GetDefaultValidator()` - Passing the validator to `boost.Ignite` as a parameter - Clear separation of concerns between validator creation and environment initialization This follows better dependency injection patterns and makes the code more testable. </details> <details> <summary>env/db.go (1)</summary> `8-8`: **Verify the relaxed validation is intentional.** The minimum length validation for `DatabaseName` was reduced from 10 to 5 characters. Ensure this change aligns with your database naming requirements and doesn't compromise validation standards. ```shell #!/bin/bash # Description: Check for database name usage patterns in the codebase # Expected: Verify current database names meet the new 5-character minimum # Search for database name configurations and usage rg -i "database.*name|db.*name" --type go -A 2 -B 2 echo "---" # Check environment files for database names fd -e env -e example | xargs cat | grep -i "db.*name"boost/factory.go (1)
12-12: LGTM! Necessary import for direct environment variable access.The
osimport is correctly added to support the refactored environment variable loading.boost/ignite.go (2)
9-9: Good refactoring - validator injection improves testability.The change to accept a validator parameter instead of creating a default one internally improves dependency injection and makes the function more testable.
10-12: Verify all callers updated for new function signature.The function signature change from
Ignite(envPath string)toIgnite(envPath string, validate *pkg.Validator)requires updates to all calling code. Ensure consistency across the codebase.#!/bin/bash # Description: Find all calls to Ignite function to verify they've been updated with the new signature # Search for calls to boost.Ignite or Ignite function rg -A 3 -B 1 'Ignite\(' --type goMakefile (3)
46-46: Improved help text clarity.The change from "Makefile Commands" to "Applications Options" better describes the available operations for users.
50-58: Consistent formatting improvements.The added spacing in help descriptions improves alignment and readability of the command documentation.
56-58: Verify new build targets match Docker Compose profiles.The simplified build targets (
build:local,build:prod,build:release) should correspond to the profiles defined in docker-compose.yml. Ensure the profile names are consistent.#!/bin/bash # Description: Verify Docker Compose profiles match Makefile build targets # Check for profile definitions in docker-compose.yml rg 'profiles:' docker-compose.yml # Check build targets in build.mk rg 'build\\:' config/makefile/build.mk.env.example (3)
1-1: Improved section organization.The simplified section headers (App, Auth, DB) make the environment file more readable and easier to navigate.
Also applies to: 9-9, 13-13
22-31: Excellent documentation for debugging and Docker variables.The expanded comments clearly explain when
EN_DB_BIN_DIRandENV_DB_URLare needed, which helps developers understand their purpose.
14-16: Verify database credential consistency across environment files.The database credentials have been updated to use "gus", "password", and "oullin_db". Ensure these changes are consistent across all environment-related files and Docker configurations.
#!/bin/bash # Description: Check for consistency of database credentials across configuration files # Search for database name references rg -i 'oullin_db|gocanto' --type yaml --type go # Check Docker Compose for database service name rg 'container_name.*db|POSTGRES_DB' docker-compose.ymlconfig/makefile/build.mk (2)
1-1: Clean simplification of build targets.The updated
.PHONYdeclaration correctly reflects the three remaining build targets, removing obsolete ones.
3-7: Verify Docker Compose profiles and service dependencies.The new build targets use Docker Compose profiles (
localandprod). Ensure that:
- The profiles are properly defined in docker-compose.yml
- All required services have appropriate dependencies
- The
--build -dflags work correctly with the new setup#!/bin/bash # Description: Verify Docker Compose profiles and service configuration # Check if profiles are defined in docker-compose.yml echo "=== Checking Docker Compose profiles ===" rg 'profiles:.*\[(local|prod)\]' docker-compose.yml # Check service dependencies echo "=== Checking service dependencies ===" rg -A 5 'depends_on:' docker-compose.yml # Validate Docker Compose file syntax echo "=== Validating Docker Compose syntax ===" docker compose -f docker-compose.yml config --quiet && echo "Docker Compose file is valid" || echo "Docker Compose file has syntax errors"docker-compose.yml (6)
1-4: Good addition of persistent volumes for Caddy.The
caddy_dataandcaddy_configvolumes ensure Caddy's SSL certificates and configuration persist across container restarts.
5-11: Excellent network segmentation architecture.The separation of
caddy_net(for reverse proxy) andoullin_net(for backend services) provides good security isolation between the public-facing proxy and internal services.
55-82: API service configuration looks comprehensive.The API service configuration includes:
- Proper environment variable injection
- Multi-network connectivity (caddy_net + oullin_net)
- Health-based dependency on postgres
- Build arguments for versioning
This setup enables the API to communicate with both the database and receive requests from Caddy.
60-63: Good container networking configuration.Setting
ENV_DB_HOST: postgresandENV_HTTP_HOST: 0.0.0.0correctly configures the API to:
- Connect to the postgres service by its service name
- Listen on all interfaces for incoming connections from Caddy
83-129: Verify postgres service health check configuration.The postgres service includes a comprehensive health check, but verify that:
- The
pg_isreadycommand works with the specified parameters- The health check intervals are appropriate for your use case
- The SSL certificate paths exist and are properly configured
#!/bin/bash # Description: Verify database configuration files and SSL certificates # Check if database SSL certificates exist echo "=== Checking database SSL certificates ===" ls -la database/infra/ssl/server.crt database/infra/ssl/server.key 2>/dev/null || echo "Database SSL certificates not found" # Check if postgresql.conf exists echo "=== Checking PostgreSQL configuration ===" ls -la database/infra/config/postgresql.conf 2>/dev/null || echo "PostgreSQL configuration not found" # Check docker-entrypoint-initdb.d directory echo "=== Checking database initialization scripts ===" ls -la database/infra/docker-entrypoint-initdb.d/ 2>/dev/null || echo "Database init directory not found"
14-34: ```shell
#!/bin/bashFetch the caddy_local service definition and its port mappings from docker-compose.yml
echo "=== caddy_local service ports in docker-compose.yml ==="
grep -R "caddy_local" -n docker-compose.yml -A 10</details> </blockquote></details> </details> <!-- This is an auto-generated comment by CodeRabbit for review status -->
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Actionable comments posted: 3
🧹 Nitpick comments (1)
caddy/Dockerfile (1)
13-13: Consider making the Caddyfile source configurable.The hardcoded
Caddyfile.localfilename limits flexibility. Consider using a build argument to specify which Caddyfile to copy.You could add a build argument for the Caddyfile:
ARG CADDY_VERSION=2.10.0 +ARG CADDYFILE=Caddyfile.local # Copy your custom Caddyfile into the container. # This overwrites the default Caddyfile. -COPY Caddyfile.local /etc/caddy/Caddyfile +COPY ${CADDYFILE} /etc/caddy/Caddyfile
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📒 Files selected for processing (5)
boost/factory.go(1 hunks)caddy/Caddyfile.prod(1 hunks)caddy/Dockerfile(1 hunks)docker-compose.yml(1 hunks)env/env.go(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- boost/factory.go
- caddy/Caddyfile.prod
🔇 Additional comments (6)
env/env.go (2)
3-6: LGTM: Clean import structure.The import additions for
osandstringsare appropriate for the newGetEnvVarfunction.
16-18: LGTM: Simple and effective environment variable retrieval.The
GetEnvVarfunction is well-implemented with proper whitespace trimming. This approach is cleaner than the previous map-based method mentioned in the summary.docker-compose.yml (4)
1-3: LGTM: Named volumes for Caddy data persistence.The named volumes
caddy_dataandcaddy_configprovide proper persistence for Caddy's data and configuration.
6-11: LGTM: Network separation improves security.The separate networks
caddy_netandoullin_netprovide good isolation between the reverse proxy layer and the backend services.
87-90: Verify service name consistency for database connections.The service is named
postgresbut has container nameoullin_db. Ensure this doesn't cause confusion in database connections.The service name
postgresshould be accessible from other services in the same network, but verify this matches theENV_DB_HOSTconfiguration in the API service.
120-132: LGTM: Comprehensive health check configuration.The health check configuration for PostgreSQL is well-structured with appropriate intervals, timeouts, and retry logic.
Summary by CodeRabbit
New Features
Improvements
Cleanup