Update Dockerfile and environment configuration for Gitea runner and Flutter CI integration

.env.example

@@ -14,4 +14,4 @@ GITEA_RUNNER_NAME=recipe-app
 
 # Runner labels (optional, defaults to ubuntu-latest if empty)
 # Format: label:docker://image,label:docker://image
-GITEA_RUNNER_LABELS=backend-node24:docker://node:24-bullseye,flutter-3-41:docker://ghcr.io/cirruslabs/flutter:stable
+GITEA_RUNNER_LABELS=backend-node24:docker://node:24.15.0-bullseye,flutter-3-41:docker://recipe-flutter-ci:3.41-node24

Dockerfile

@@ -1,11 +1,16 @@
-FROM gitea/act_runner:latest
+ARG ACT_RUNNER_VERSION=0.2.11
+FROM gitea/act_runner:${ACT_RUNNER_VERSION}
 
 USER root
 
-# Docker CLI – behövs för shell-jobb som kör docker-kommandon direkt
-# openssh-client – behövs för deployment-scripts via SSH
-# curl – allmänt användbart i workflow-steg
+# Basverktyg för robusta shell-workflows och JS-baserade actions.
 RUN apk add --no-cache \
+                bash \
+                ca-certificates \
         curl \
         docker-cli \
-        openssh-client
+                git \
+                nodejs \
+                npm \
+                openssh-client \
+        && update-ca-certificates

README.md

@@ -49,16 +49,24 @@ Sätt dessa värden:
 GITEA_INSTANCE_URL=https://gitea.gynther.se
 GITEA_RUNNER_REGISTRATION_TOKEN=<din-token-här>
 GITEA_RUNNER_NAME=recipe-app
-GITEA_RUNNER_LABELS=backend-node24:docker://node:24-bullseye,flutter-3-41:docker://ghcr.io/cirruslabs/flutter:stable
+GITEA_RUNNER_LABELS=backend-node24:docker://node:24.15.0-bullseye,flutter-3-41:docker://recipe-flutter-ci:3.41-node24
 ```
 
-### 4. Starta runnern
+### 4. Bygg lokal Flutter CI-image
+
+Flutter-jobben blir stabilare om de körs i en image med både Flutter + Node.js + Git.
+
+```bash
+docker build -f images/flutter-ci/Dockerfile -t recipe-flutter-ci:3.41-node24 .
+```
+
+### 5. Starta runnern
 
 ```bash
 docker compose up -d
 ```
 
-### 5. Verifiera att den är online
+### 6. Verifiera att den är online
 
 ```bash
 docker compose logs -f
@@ -93,8 +101,8 @@ docker compose down -v
 Workflown i `recipe-app` definieras i [recipe-app/.gitea/workflows/test.yml](../recipe-app/.gitea/workflows/test.yml).
 
 Aktuella labels:
-- **`backend-node24`**: Node.js 24 i Bullseye — för backend-jobb (build, test, linting)
-- **`flutter-3-41`**: Flutter 3.41 — för Flutter-jobb (analyze, test)
+- **`backend-node24`**: Node.js 24.15 i Bullseye — för backend-jobb (build, test, linting)
+- **`flutter-3-41`**: Lokal image `recipe-flutter-ci:3.41-node24` med Flutter + Node + Git + Bash
 
 Om en workflow kör med `runs-on: backend-node24` eller `runs-on: flutter-3-41`, kommer denna runner att köra jobbet i motsvarande Docker-image.
 
@@ -119,8 +127,13 @@ Säkra att workflow använder en av de definierade labels. Om `runs-on` matchar
 
 **Verifiera Docker-image:**
 ```bash
-docker pull node:24-bullseye
-docker pull ghcr.io/cirruslabs/flutter:stable
+docker pull node:24.15.0-bullseye
+docker image inspect recipe-flutter-ci:3.41-node24
+```
+
+Om flutter-image saknas:
+```bash
+docker build -f images/flutter-ci/Dockerfile -t recipe-flutter-ci:3.41-node24 .
 ```
 
 ### Token är exponerad

docker-compose.yml

@@ -7,13 +7,22 @@ services:
     container_name: gitea-runner
     restart: unless-stopped
     environment:
-      GITEA_INSTANCE_URL: ${GITEA_INSTANCE_URL}
-      GITEA_RUNNER_REGISTRATION_TOKEN: ${GITEA_RUNNER_REGISTRATION_TOKEN}
+      GITEA_INSTANCE_URL: ${GITEA_INSTANCE_URL:?Set GITEA_INSTANCE_URL in .env}
+      GITEA_RUNNER_REGISTRATION_TOKEN: ${GITEA_RUNNER_REGISTRATION_TOKEN:?Set GITEA_RUNNER_REGISTRATION_TOKEN in .env}
       GITEA_RUNNER_NAME: ${GITEA_RUNNER_NAME:-recipe-app}
-      GITEA_RUNNER_LABELS: ${GITEA_RUNNER_LABELS:-backend-node24:docker://node:24-bullseye,flutter-3-41:docker://ghcr.io/cirruslabs/flutter:stable}
+      GITEA_RUNNER_LABELS: ${GITEA_RUNNER_LABELS:-backend-node24:docker://node:24.15.0-bullseye,flutter-3-41:docker://recipe-flutter-ci:3.41-node24}
     volumes:
       - runner-data:/data
       - /var/run/docker.sock:/var/run/docker.sock
+    security_opt:
+      - no-new-privileges:true
+    tmpfs:
+      - /tmp
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "3"
     healthcheck:
       test: ["CMD-SHELL", "pgrep -x act_runner > /dev/null || exit 1"]
       interval: 30s

images/flutter-ci/Dockerfile

@@ -0,0 +1,18 @@
+ARG FLUTTER_BASE_IMAGE=ghcr.io/cirruslabs/flutter:stable
+FROM ${FLUTTER_BASE_IMAGE}
+
+USER root
+
+# Flutter-jobb i Gitea Actions behöver ofta även Node.js + Git + Bash.
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        bash \
+        ca-certificates \
+        curl \
+        git \
+        nodejs \
+        npm \
+        openssh-client \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /workspace