Updated repository references and add gcloud tutorial

.github/workflows/docker.yml

@@ -5,10 +5,10 @@ on:
     tags:
     - v*
     branches:
-    - master
+    - main
   pull_request:
     branches:
-    - master
+    - main
 
 jobs:
   build:
@@ -48,7 +48,7 @@ jobs:
         fi
 
         DATE="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
-        REF="${BRANCH_NAME:-master}"
+        REF="${BRANCH_NAME:-main}"
         OTHER_ARGS=""
         OTHER_PUSH_ARGS=""
 

README.md

@@ -5,7 +5,7 @@ An open source serveo/ngrok alternative.
 ## Deploy
 
 Builds are made automatically for each commit to the repo and are pushed to Dockerhub. Builds are
-tagged using a commit sha, branch name, tag, latest if released on master.
+tagged using a commit sha, branch name, tag, latest if released on main.
 You can find a list [here](https://hub.docker.com/r/antoniomika/sish/tags).
 Each release builds separate `sish` binaries that can be downloaded from
 [here](https://github.com/antoniomika/sish/releases) for various OS/archs.
@@ -224,7 +224,6 @@ need to set `--geodb` to `true`.
 To use sish, you need to add a wildcard DNS record that is used for multiplexed subdomains.
 Adding an `A` record with `*` as the subdomain to the IP address of your server is the simplest way to achieve this configuration.
 
-
 ## Demo - At this time, the demo instance has been set to require auth due to abuse
 
 There is a demo service (and my private instance) currently running on `ssi.sh` that

deploy/gcloud.md

@@ -0,0 +1,136 @@
+# sish installation
+
+sish is an open source serveo/ngrok alternative that can be used to open a tunnel
+to localhost that is accessible to the open internet using only SSH. sish implements
+an SSH server that can handle multiplexing of HTTP(S), TCP, and TCP Aliasing
+([more about this can be found in the README](https://github.com/antoniomika/sish/blob/main/README.md))
+
+This tutorial will teach you how to:
+
+* Setup an instance in Google Cloud using the [free tier](https://cloud.google.com/free)
+* Change the default SSH port
+* Add and modify authentication for users
+* Access sish from a remote computer
+
+## Project selection
+
+You first need to select a project to host the resources created in this tutorial.
+I'd suggest creating a new project at this time where your sish instance will live.
+<walkthrough-project-setup></walkthrough-project-setup>
+
+## Access Google Cloud Shell
+
+<walkthrough-auto-open-cloud-shell></walkthrough-auto-open-cloud-shell>
+
+## Create the instance running the container
+
+Here is a command to create the instance running the sish container. This will start the container
+on a hardened [Container Optimized OS](https://cloud.google.com/container-optimized-os/docs) and start
+the service. This is just a starting command that runs sish on port `2222`, `80`, and `443`. If you
+accept the [Let's Encrypt TOS](https://letsencrypt.org/repository/), you can enable automatic SSL cert loading.
+This command does *NOT* include authentication and it is up to you to properly tune these parameters based on
+the documentation [here](https://github.com/antoniomika/sish#cli-flags). Make sure to update `YOURDOMAIN`
+to the actual domain you own. You will also need to setup the DNS records as described below. Also feel free
+to change the `--zone` used for these commands.
+
+```bash
+gcloud compute instances create-with-container sish \
+    --zone="us-central1-a" \
+    --tags="sish" \
+    --container-mount-host-path="host-path=/mnt/stateful_partition/sish/ssl,mount-path=/ssl" \
+    --container-mount-host-path="host-path=/mnt/stateful_partition/sish/keys,mount-path=/keys" \
+    --container-mount-host-path="host-path=/mnt/stateful_partition/sish/pubkeys,mount-path=/pubkeys" \
+    --container-image="antoniomika/sish:latest" \
+    --machine-type="f1-micro" \
+    --container-arg="--domain=YOURDOMAIN" \
+    --container-arg="--ssh-address=:2222" \
+    --container-arg="--http-address=:80" \
+    --container-arg="--https-address=:443" \
+    --container-arg="--https=true" \
+    --container-arg="--https-certificate-directory=/ssl" \
+    --container-arg="--authentication-keys-directory=/pubkeys" \
+    --container-arg="--private-key-location=/keys/ssh_key" \
+    --container-arg="--bind-random-ports=false" \
+    --container-arg="--bind-random-subdomains=false" \
+    --container-arg="--bind-random-aliases=false" \
+    --container-arg="--tcp-aliases=true" \
+    --container-arg="--service-console=true" \
+    --container-arg="--log-to-client=true" \
+    --container-arg="--admin-console=true" \
+    --container-arg="--verify-ssl=false" \
+    --container-arg="--https-ondemand-certificate=false" \
+    --container-arg="--https-ondemand-certificate-accept-terms=false" \
+    --container-arg="--https-ondemand-certificate-email=certs@YOURDOMAIN" \
+    --container-arg="--idle-connection=false" \
+    --container-arg="--ping-client-timeout=2m"
+```
+
+## Network Setup
+
+### Open the firewall to allow access to all instance ports
+
+```bash
+gcloud compute firewall-rules create allow-all-tcp-sish \
+    --action="allow" \
+    --direction="ingress" \
+    --rules="tcp" \
+    --source-ranges="0.0.0.0/0" \
+    --priority="1000" \
+    --target-tags="sish"
+```
+
+### Adding a DNS record
+
+Get the external IP address of your machine and create two DNS records
+
+* An `A` record for YOURDOMAIN pointing it to the output below
+* An `A` record for *.YOURDOMAIN pointing it to the output below
+
+```bash
+gcloud compute instances describe sish \
+    --zone="us-central1-a" \
+    --format='get(networkInterfaces[0].accessConfigs[0].natIP)'
+```
+
+## Using sish
+
+### Try using SSH to connect to the sish service
+
+```bash
+ssh -p 2222 -R foo:80:httpbin.org:80 YOURDOMAIN
+```
+
+### Access the address sish gave you
+
+```bash
+curl -vvv http://foo.YOURDOMAIN/anything
+```
+
+## Advanced usage
+
+### Login into your new machine
+
+```bash
+gcloud compute ssh sish --zone="us-central1-a"
+```
+
+### Adding SSH keys for when you enable auth
+
+```bash
+echo "ssh_public_key_here" >> /mnt/stateful_partition/sish/pubkeys/your_user.keys
+```
+
+## Tear it down
+
+### First the instance
+
+```bash
+gcloud compute instances delete sish \
+    --zone="us-central1-a"
+```
+
+### Then the firewall rule
+
+```bash
+gcloud compute firewall-rules delete allow-all-tcp-sish
+```