Added article about auto release updates

content/blog/04-automatic-release.md

@@ -1,6 +1,6 @@
 ---
 date: '2026-03-24T20:36:26+01:00'
-draft: true
+draft: false
 title: 'Automatic web update release'
 author: "Jirka"
 tags: ["self-host", "gitea", "automation"]
@@ -170,3 +170,105 @@ jobs:
 ```
 
 This will automatically create package on push to master.
+
+Now, once the package was successfully built, we can move onto the webhook.
+
+## Webhook set up
+
+For webhook, we will use `almir/webhook:latest` image, But because we need curl and zip, we will build it on our own.
+Created `webhook` directory next to `web` directory and create `Dockerfile`:
+```
+FROM almir/webhook:latest
+
+USER root
+
+RUN apk add --no-cache curl unzip
+
+WORKDIR /app
+```
+
+Next we will specify script, which will be executed on webhook trigger. Create file `deploy.sh` with `+x` privileges to be executable:
+```bash
+#!/bin/sh
+set -e
+
+TEMP_DIR=$(mktemp -d)
+ZIP_PATH="$TEMP_DIR/web.zip"
+
+curl -fL -o "$ZIP_PATH" "https://git.jirkabuilds.dev/api/packages/jirka/generic/hugo-build/latest/web.zip"
+
+# Delete old web data
+rm -rf /site_data/*
+rm -rf /site_data/.[!.]* 2>/dev/null || true
+
+unzip -q "$ZIP_PATH" -d /site_data/
+
+rm -rf "$TEMP_DIR"
+```
+
+As you can see, we are downloading created package and replacing all site content.
+
+Next step is to define hook itself. Create `hooks.json` file with following content:
+```
+[
+  {
+    "id": "deploy-web",
+    "execute-command": "/app/deploy.sh",
+    "command-working-directory": "/app",
+    "trigger-rule": {
+      "match": {
+        "type": "value",
+        "value": "secret token",
+        "parameter": {
+          "source": "header",
+          "name": "X-Deploy-Token"
+        }
+      }
+    }
+  }
+]
+```
+You should create `secret`, which you will store to Gitea, same as with token earlier` with name `WEBHOOK_SECRET`. Thanks to it, only the workflow can trigger this webhook.
+
+And last step is to create `docker-compose.yml`:
+```
+services:
+  webhook:
+    build: .
+    container_name: jirkabuilds_release_web_webhook
+    volumes:
+      - ./hooks.json:/etc/webhook/hooks.json:ro
+      - ./deploy.sh:/app/deploy.sh:ro
+      - ./../web/site_data:/site_data 
+    command: ["-verbose", "-hooks=/etc/webhook/hooks.json", "-hotreload"]
+    restart: unless-stopped
+    networks:
+      - jirkabuilds_proxy_network
+
+networks:
+  jirkabuilds_proxy_network:
+```
+
+You can see, we are using the same proxy network as for everything. Next step is to add following block to `Caddyfile`:
+```
+hooks.jirkabuilds.dev {
+    reverse_proxy jirkabuilds_release_web_webhook:9000
+}
+```
+
+And following line to our root `docker-compose.yml`
+```
+  - webhook/docker-compose.yml
+```
+
+Now you can restart the stack and webhook should work.
+
+Final last step is to replace #TODO in our workflow with following:
+```
+      - name: Trigger Webhook
+        run: |
+          curl -X POST "https://hooks.jirkabuilds.dev/hooks/deploy-web" \
+               -H "X-Deploy-Token: ${{ secrets.WEBHOOK_SECRET }}"
+```
+
+And that is it. On next push, web should update itself automatically.