feat: add podman

Dockerfile

@@ -1,21 +1,46 @@
 FROM node:24
 
 RUN apt-get update && apt-get upgrade -y && \
+    apt-get install -y --no-install-recommends \
+      podman \
+      uidmap \
+      slirp4netns \
+      fuse-overlayfs \
+      dbus-user-session \
+      containernetworking-plugins \
+      netavark \
+      aardvark-dns \
+      iptables \
+      ca-certificates && \
     rm -rf /var/lib/apt/lists/*
 
 RUN set -eux; \
     userdel -r node; \
     groupadd -g 1000 opencode; \
-    useradd -m -u 1000 -g 1000 -s /usr/bin/bash opencode && \
+    useradd -m -u 1000 -g 1000 -s /usr/bin/bash opencode; \
+    awk -F: '!seen[$1":"$2":"$3]++' /etc/subuid > /etc/subuid.tmp; \
+    mv /etc/subuid.tmp /etc/subuid; \
+    awk -F: '!seen[$1":"$2":"$3]++' /etc/subgid > /etc/subgid.tmp; \
+    mv /etc/subgid.tmp /etc/subgid; \
+    mkdir -p /home/opencode/.config/containers /home/opencode/.local/share/containers; \
+    printf '%s\n' '[storage]' 'driver = "vfs"' > /home/opencode/.config/containers/storage.conf; \
+    printf '%s\n' '[engine]' 'cgroup_manager = "cgroupfs"' 'events_logger = "file"' > /home/opencode/.config/containers/containers.conf; \
+    chown -R 1000:1000 /home/opencode/.config /home/opencode/.local; \
     npm update -g && \
     npm install -g opencode-ai n2-soul@9.0.8 && \
     npm cache clean --force
 
 COPY --chmod=755 opencode-attach /usr/local/bin/opencode-attach
 
+ENV XDG_RUNTIME_DIR=/tmp/run-user/1000
+ENV _CONTAINERS_USERNS_CONFIGURED=""
+
+RUN mkdir -p /tmp/run-user/1000 && chown -R 1000:1000 /tmp/run-user
+
 USER opencode
 WORKDIR /home/opencode
 
 RUN opencode --version
+RUN podman --version
 
 ENTRYPOINT ["opencode"]