From 723b9f185f942cf7d55c1c882b180c2b8fd4b1f4 Mon Sep 17 00:00:00 2001
From: Sebastian Hugentobler <shu@vanwa.ch>
Date: Tue, 3 Jun 2025 08:16:32 +0200
Subject: [PATCH] initial commit

---
 Containerfile                         | 12 ++++++++++++
 rootfs/etc/containers/containers.conf |  2 ++
 rootfs/etc/containers/storage.conf    |  8 ++++++++
 3 files changed, 22 insertions(+)
 create mode 100644 Containerfile
 create mode 100644 rootfs/etc/containers/containers.conf
 create mode 100644 rootfs/etc/containers/storage.conf

diff --git a/Containerfile b/Containerfile
new file mode 100644
index 0000000..72aca2d
--- /dev/null
+++ b/Containerfile
@@ -0,0 +1,12 @@
+FROM docker.io/jenkins/ssh-agent:alpine-jdk21
+
+RUN apk --no-cache add \
+  podman \
+  fuse-overlayfs
+
+RUN mkdir -p /run/containers
+
+RUN echo jenkins:100000:65536 >/etc/subuid
+RUN echo jenkins:100000:65536 >/etc/subgid
+
+RUN ln -s /usr/bin/podman /usr/bin/docker
diff --git a/rootfs/etc/containers/containers.conf b/rootfs/etc/containers/containers.conf
new file mode 100644
index 0000000..3f8d495
--- /dev/null
+++ b/rootfs/etc/containers/containers.conf
@@ -0,0 +1,2 @@
+[containers]
+userns = "keep-id"
diff --git a/rootfs/etc/containers/storage.conf b/rootfs/etc/containers/storage.conf
new file mode 100644
index 0000000..8c99f1e
--- /dev/null
+++ b/rootfs/etc/containers/storage.conf
@@ -0,0 +1,8 @@
+[storage]
+driver = "overlay"
+runroot = "/tmp/containers"
+graphroot = "$HOME/.local/share/containers/storage"
+rootless_storage_path = "$HOME/.local/share/containers/storage"
+
+[storage.options.overlay]
+mount_program = "/usr/bin/fuse-overlayfs"