upgrade gitea-runner setup with compilation, and better socket handling

README.md

@@ -177,7 +177,7 @@ docker runner.
 
 Example uses root, but it should be very similar to setup under non-root user.
 
-Build image setting proper platform architecture `amd64`, `arm64`, etc...
+Build image (will compile from main branch)
 ```bash
 podman build --no-cache -t gitea-runner \
     --build-arg ARCH="arm64" \
@@ -234,11 +234,11 @@ podman run --rm -d --privileged --name gitea-podman \
             system service --time=0 unix:///podman/docker.sock
 ```
 
-Now start container with runner (it will fail if docker.sock is missing)
+Now start container with runner
 ```bash
 podman run --rm -d --name gitea-runner \
     -v /root/act-runner/runner/:/etc/runner:ro,Z \
-    -v /root/act-runner/podman/docker.sock:/var/run/docker.sock:rw,z \
+    -v /root/act-runner/podman:/podman:rw,z \
         gitea-runner:latest \
             daemon -c /etc/runner/config.yaml
 ```

gitea-runner/Dockerfile

@@ -1,12 +1,20 @@
 FROM quay.io/podman/stable
 
-ENV VERSION="0.2.6"
-ARG ARCH="amd64"
+RUN mkdir -p /opt /var/run && \
+    ln -sf /podman/docker.sock /var/run/docker.sock
 
-RUN curl -o /act_runner https://gitea.com/gitea/act_runner/releases/download/v0.2.6/act_runner-${VERSION}-linux-${ARCH} && \
-    chmod +x /act_runner && \
-    chown podman /act_runner
+RUN dnf install -y make go git && \
+    cd /tmp && \
+    git clone https://gitea.com/gitea/act_runner.git && \
+    cd act_runner && \
+    make build && \
+    mv /tmp/act_runner/act_runner /opt/ && \
+    chown podman /opt/act_runner && \
+    dnf remove -y make go git && \
+    dnf autoremove -y && \
+    dnf clean all && \
+    rm -rf /tmp/* /root/go
 
 USER podman
 
-ENTRYPOINT [ "/act_runner" ]
+ENTRYPOINT [ "/opt/act_runner" ]