diff --git a/.gitea/workflows/container.yaml b/.gitea/workflows/container.yaml
deleted file mode 100644
index e48b3fd..0000000
--- a/.gitea/workflows/container.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
-name: Build Multiarch Container Image
-on: [push]
-jobs:
-  call-reusable-workflow:
-    uses: container/multiarch-build-workflow/.gitea/workflows/build.yaml@main
-    with:
-      repository: ${{ gitea.repository }}
-      ref_name: ${{ gitea.ref_name }}
-      sha: ${{ gitea.sha }}
-      registry_url: ${{ secrets.REGISTRY_URL }}
-      registry_user: ${{ secrets.REGISTRY_USER }}
-      registry_pw: ${{ secrets.REGISTRY_PW }}
diff --git a/.woodpecker.yml b/.woodpecker.yml
new file mode 100644
index 0000000..db169b6
--- /dev/null
+++ b/.woodpecker.yml
@@ -0,0 +1,11 @@
+pipeline:
+  publish-docker-image:
+    image: plugins/kaniko
+    settings:
+      repo: docker.io/thallian/keycloak
+      tags: latest,${CI_COMMIT_SHA:0:8},${CI_COMMIT_TAG=pre}
+      dockerfile: Dockerfile
+      username:
+        from_secret: DOCKER_USER
+      password:
+        from_secret: DOCKER_PW
\ No newline at end of file
diff --git a/Containerfile b/Dockerfile
similarity index 68%
rename from Containerfile
rename to Dockerfile
index e51e284..f080e9a 100644
--- a/Containerfile
+++ b/Dockerfile
@@ -1,14 +1,14 @@
-FROM docker.io/alpine:3.19 AS builder
+FROM docker.io/alpine:3.17 AS builder
 
-ENV VERSION=24.0.2
-ENV SHA256_SUM=8e8f196d8371e4c243b25e48149db242a483fabf2f0a628d31428ead95e52844
+ENV VERSION=20.0.3
+ENV SHA256_SUM=31ef88cdb58197a751788a58a9f6ad926dcaf0200a83b78105f33e90690e97cf
 
 RUN wget "https://github.com/keycloak/keycloak/releases/download/$VERSION/keycloak-$VERSION.tar.gz"
 RUN echo "$SHA256_SUM  keycloak-$VERSION.tar.gz" | sha256sum -c - || exit 1
 RUN mkdir -p /keycloak
 RUN tar xvf keycloak-$VERSION.tar.gz -C /keycloak --strip 1
 
-FROM docker.io/thallian/alpine-s6:3.19-3.1.6.2
+FROM docker.io/thallian/alpine-s6:3.17
 
 ENV JAVA_OPTS_APPEND="-Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true"
 
@@ -16,12 +16,12 @@ RUN addgroup -g 2222 keycloak
 RUN adduser -h /home/keycloak -u 2222 -D -G keycloak keycloak
 
 RUN apk add --no-cache \
-	openjdk21-jre-headless \
+	openjdk17-jre-headless \
 	bash
 
 COPY --from=builder --chown=keycloak:keycloak /keycloak /home/keycloak/server
 
-RUN /home/keycloak/server/bin/kc.sh build --db=postgres --metrics-enabled=true
+RUN /home/keycloak/server/bin/kc.sh build --db postgres 
 RUN chown -R keycloak:keycloak /home/keycloak
 
 ADD /rootfs /
diff --git a/rootfs/etc/s6-overlay/s6-rc.d/keycloak/run b/rootfs/etc/s6-overlay/s6-rc.d/keycloak/run
index 2b114f7..6ec8d2a 100644
--- a/rootfs/etc/s6-overlay/s6-rc.d/keycloak/run
+++ b/rootfs/etc/s6-overlay/s6-rc.d/keycloak/run
@@ -8,5 +8,5 @@ exec s6-setuidgid keycloak /home/keycloak/server/bin/kc.sh start \
 	--db-password "$DB_PASSWORD" \
 	--hostname "$HOSTNAME" \
 	--http-enabled true \
-	--hostname-strict-backchannel=true \
+  --hostname-strict-backchannel=true \
 	--proxy edge