readme and tweaks

Signed-off-by: Felix Bartels <felix@host-consultants.de>

README.md

@@ -1,4 +1,57 @@
+# Drone CI for Cloudron
+
+Run the Drone server on Cloudron and the agents locally.
+
+I am using this setup together with a Gitea running on the same Cloudron installation.
+
+## Requirements
+
+- `docker-compose`
+- `git`
+- `make`
+- Cloudron CLI
+
+## Tips and Tricks
+
+I would also like to share some very useful commands. To install `drone` CLI, follow [official docs](https://docs.drone.io/cli/install/).
+
+### Using drone-cli
+
+Go to your [user settings](https://drone.9wd.eu/account) and get login information
+
+```bash
+export DRONE_SERVER=https://drone.9wd.eu
+export DRONE_TOKEN=your token
+drone info
+```
+
+### Executing pipelines directly
+
+You can also run pipelines directly with the Drone CLI:
+
+```bash
+drone exec --secret-file drone_secrets.yaml .drone.yml
+```
+
+A template for `drone-secrets.yaml`:
+
+```yaml
+slack_url: https://hooks.slack.com/services/xxxxxxxxxxxx
+```
+
+### Adding secrets through CLI
+
+You can either add secrets through the web UI or use drone directly from your terminal:
+
+```bash
+drone secret add -repository username/repository-name --name foo --data bar --allow-pull-request
+```
+
+## Inspiration
+
+- [Setting up simple, self-hosted & fast CI/CD solution with Drone.io](https://webhookrelay.com/blog/2019/02/11/using-drone-for-simple-selfhosted-ci-cd/)
+
 ## TODO
 
-- remove commited secrets
-- retrieve rpc secret from cloudron
+- [*] remove commited secrets
+- [*] retrieve rpc secret from cloudron

docker-compose.yml

@@ -9,7 +9,7 @@ services:
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
     environment:
-      - DRONE_RPC_SERVER=https://drone.9wd.eu
-      - DRONE_RPC_SECRET=QdExkSpgVY5RiC783UcqFgt8mvEs0Mid
-      - DRONE_RUNNER_CAPACITY=2
-      - DRONE_RUNNER_NAME="clifford"
+      - DRONE_RPC_SERVER=${DRONE_RPC_SERVER}
+      - DRONE_RPC_SECRET=${DRONE_RPC_SECRET}
+      - DRONE_RUNNER_CAPACITY=${DRONE_RUNNER_CAPACITY}
+      - DRONE_RUNNER_NAME=${DRONE_RUNNER_NAME}

run-agent.sh

@@ -1,4 +1,4 @@
-#/bin/sh
+#!/bin/sh
 
 set -x
 
@@ -6,12 +6,22 @@ random_string() {
 	LC_CTYPE=C tr -dc 'a-zA-Z0-9' < /dev/urandom | head -c32
 }
 
-if [ ! -e .env ]; then
-        cat <<-EOF > ".env"
-DRONE_RPC_SERVER=https://drone.9wd.eu
-DRONE_RPC_SECRET=QdExkSpgVY5RiC783UcqFgt8mvEs0Mid
-DRONE_RUNNER_CAPACITY="$(nproc)"
-DRONE_RUNNER_NAME="$(hostname)"
-EOF
-fi
+update_env_file () {
+    varname="$1"
+    varvalue="$2"
+    if ! grep -q "$varname" ./.env; then
+        echo "$varname=$varvalue" >> ./.env
+    else
+        sed -i "/$varname/c $varname=$varvalue" ./.env
+    fi
+}
+
+cloudron pull /app/data/.env .env
+
+. ./.env
+
+update_env_file DRONE_RPC_SERVER "https://$DRONE_SERVER_HOST"
+update_env_file DRONE_RUNNER_CAPACITY "$(nproc)"
+update_env_file DRONE_RUNNER_NAME "$(hostname)"
+
 docker-compose up -d