new file: .dockerignore

modified:   Dockerfile

Dockerfile

@@ -1,24 +1,50 @@
-FROM ubuntu:22.04
+# Bessere Alternative: Direkter Download
+FROM alpine:3.19 AS builder
 
-RUN apt-get update && apt-get install -y curl jq git sudo
+RUN apk update && apk add --no-cache \
+    curl \
+    tar \
+    gzip \
+    bash \
+    ca-certificates
 
-# Create a non-root user runneruser
-RUN useradd -m runneruser && echo "runneruser ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+ARG RUNNER_VERSION=2.310.2
+WORKDIR /tmp
+
+# Lade GitHub Actions Runner direkt herunter
+RUN curl -o actions-runner.tar.gz -L \
+    "https://github.com/actions/runner/releases/download/v2.329.0/actions-runner-linux-x64-2.329.0.tar.gz"
+
+# Erstelle Zielverzeichnis
+RUN mkdir -p /tmp/actions-runner
+
+# Extrahiere direkt ohne --strip-components (oft problematisch)
+RUN tar xzf actions-runner.tar.gz -C /tmp/actions-runner
+
+# Runtime Stage
+FROM alpine:3.19
+
+RUN apk update && apk add --no-cache \
+    curl \
+    jq \
+    git \
+    bash \
+    sudo \
+    ca-certificates \
+    && rm -rf /var/cache/apk/*
+
+RUN adduser -D -s /bin/bash runneruser && \
+    echo "runneruser ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 
 RUN mkdir -p /actions-runner
 WORKDIR /actions-runner
 
-COPY actions-runner.tar.gz actions-runner.tar.gz
-RUN tar xzf ./actions-runner.tar.gz
-RUN ./bin/installdependencies.sh
+# Kopiere extrahierte Dateien
+COPY --from=builder /tmp/actions-runner ./
 
 COPY entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
+RUN chmod +x /entrypoint.sh && \
+    chown -R runneruser:runneruser /actions-runner
 
-# Change ownership of the runner directory to the non-root user
-RUN chown -R runneruser:runneruser /actions-runner
-
-# Switch to non-root user
 USER runneruser
-
 ENTRYPOINT ["/entrypoint.sh"]