diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..9eaa80f
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,18 @@
+image: quay.io/podman/stable
+
+stages:
+  - build
+  - push
+
+variables:
+  IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
+
+before_script:
+  - echo -n $CI_REGISTRY_PASSWORD | podman login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
+
+build:
+  stage: build
+  script:
+    - podman build -t $IMAGE_TAG .
+    - podman push $IMAGE_TAG
+  when: manual
diff --git a/.woodpecker/publish.yaml b/.woodpecker/publish.yaml
deleted file mode 100644
index 4a50072..0000000
--- a/.woodpecker/publish.yaml
+++ /dev/null
@@ -1,35 +0,0 @@
-when:
-- event: tag
-
-clone:
-- name: git
-  image: woodpeckerci/plugin-git
-  settings:
-    partial: false
-    tags: true
-    depth: 0
-
-steps:
-- name: publish
-  image: quay.io/podman/stable
-  environment:
-    REGISTRY: registry.mnl.de
-    REGISTRY_USER: mnl
-    REGISTRY_TOKEN:
-      from_secret: REGISTRY_TOKEN
-  commands:
-  # Because we run this as user 1000 to make podman work:
-  - git config --global --add safe.directory $(pwd)
-  - export IMAGE_TAG=$(git describe --tags)
-  - echo $IMAGE_TAG
-  - export IMAGE_REF="$REGISTRY/$REGISTRY_USER/jdk21-builder:$IMAGE_TAG"
-  - echo $REGISTRY_TOKEN | podman login -u $REGISTRY_USER --password-stdin $REGISTRY
-  - echo Building image $IMAGE_REF
-  - podman build -t $IMAGE_REF .
-  - podman push $IMAGE_REF
-  backend_options:
-    kubernetes:
-      securityContext:
-        privileged: true
-        runAsUser: 1000
-        runAsGroup: 1000
diff --git a/Containerfile b/Containerfile
index 4a2e1e4..77f4561 100644
--- a/Containerfile
+++ b/Containerfile
@@ -1,8 +1,5 @@
-# Podman for running in container pre-installed
-# See https://www.redhat.com/en/blog/podman-inside-container
-FROM quay.io/podman/stable
+FROM docker.io/fedora:40
 
-RUN dnf install -y java-21-openjdk-headless nodejs python \
-  gcc gcc-c++ git graphviz ruby
+RUN dnf install -y java-21-openjdk-headless nodejs python gcc gcc-c++ git podman
 
 CMD ["/bin/bash"]