Try to do this in another way

.woodpecker/base-cont.yml

@@ -0,0 +1,13 @@
+steps:
+  build:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: gitea.simcop2387.info/simcop2387/papermc-base-os
+      registry: gitea.simcop2387.info
+      auto_tag: true
+      dockerfile: os-base/Dockerfile
+      tags: 
+        - base-${CI_PIPELINE_NUMBER}
+      username: simcop2387
+      password:
+        from_secret: docker_token

.woodpecker/build.yml

@@ -1,3 +1,6 @@
+depends_on:
+  - 'base-cont'
+
 matrix:
   MC_VERSION:
     #    - 1.19.3
@@ -6,10 +9,8 @@ matrix:
       #    - 1.20.2
       #    - 1.20.4
       #    - 1.20.6
-    - 1.21
     - 1.21.1
     - 1.21.3
-    - 1.21.4
 
 steps:
   build:
@@ -29,16 +30,3 @@ steps:
         - RCON_CLI_VER=1.6.4
         - memory_size=3G
           #        - java_flags="-Dlog4j2.formatMsgNoLookups=true -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=mcflags.emc.gs -Dcom.mojang.eula.agree=true"
-  discord notification:
-    image: appleboy/drone-discord
-    settings:
-      webhook_id:
-        from_secret: discord_webhook_id
-      webhook_token:
-        from_secret: discord_webhook_token
-      message: >
-        {{#success build.status}}
-          build {{build.number}} succeeded. Good job.
-        {{else}}
-          build {{build.number}} failed. Fix me please.
-        {{/success}}

.woodpecker/discord.yml

@@ -0,0 +1,20 @@
+depends_on:
+  - 'base-cont'
+  - 'build'
+
+runs_on: ['success', 'failure']
+
+steps:
+  discord notification:
+    image: appleboy/drone-discord
+    settings:
+      webhook_id:
+        from_secret: discord_webhook_id
+      webhook_token:
+        from_secret: discord_webhook_token
+      message: >
+        {{#success build.status}}
+          build {{build.number}} succeeded. Good job.
+        {{else}}
+          build {{build.number}} failed. Fix me please.
+        {{/success}}

Dockerfile

@@ -1,23 +1,7 @@
 ########################################################
 ############## We use a java base image ################
 ########################################################
-FROM debian:sid AS build
+FROM gitea.simcop2387.info/simcop2387/papermc-base-os:latest AS build
-# Set environment variables to avoid interactive prompts
-ENV DEBIAN_FRONTEND=noninteractive
-ENV APT_LISTCHANGES_FRONTEND=none
-
-RUN ls -lah /etc/apt/sources.list.d/
-RUN sed -i -e's/ main/ main contrib non-free/g' /etc/apt/sources.list.d/debian.sources
-RUN apt update && apt install -y curl jq bash sudo wget gnupg2
-
-RUN wget -O - https://apt.corretto.aws/corretto.key | gpg --dearmor -o /usr/share/keyrings/corretto-keyring.gpg && \
-    echo "deb [signed-by=/usr/share/keyrings/corretto-keyring.gpg] https://apt.corretto.aws stable main" | tee /etc/apt/sources.list.d/corretto.list
-
-RUN apt-get update && apt-get install -y java-21-amazon-corretto-jdk libxi6 libxtst6 libxrender1
-
-LABEL Marc Tönsing <marc@marc.tv>
-
-ARG version=1.20.6
 
 ########################################################
 ############## Download Paper with API #################
@@ -35,19 +19,7 @@ RUN java -Dpaperclip.patchonly=true -jar /opt/minecraft/paperclip.jar; exit 0
 ########################################################
 ############## Running environment #####################
 ########################################################
-FROM debian:sid AS runtime
+FROM gitea.simcop2387.info/simcop2387/papermc-base-os:latest AS runtime
-# Set environment variables to avoid interactive prompts
-ENV DEBIAN_FRONTEND=noninteractive
-ENV APT_LISTCHANGES_FRONTEND=none
-
-RUN sed -i -e's/ main/ main contrib non-free/g' /etc/apt/sources.list.d/debian.sources
-RUN apt update && apt install -y curl jq bash sudo wget gnupg2
-
-RUN wget -O - https://apt.corretto.aws/corretto.key | gpg --dearmor -o /usr/share/keyrings/corretto-keyring.gpg && \
-    echo "deb [signed-by=/usr/share/keyrings/corretto-keyring.gpg] https://apt.corretto.aws stable main" | tee /etc/apt/sources.list.d/corretto.list
-
-RUN apt-get update && apt-get install -y java-21-amazon-corretto-jdk libxi6 libxtst6 libxrender1
-
 
 # Working directory
 WORKDIR /data
@@ -84,12 +56,6 @@ RUN chmod +x /opt/minecraft/docker-entrypoint.sh
 RUN    addgroup --gid 9001 dockergroup
 RUN    adduser --shell /bin/sh --uid 9001 --gid 9001 dockeruser
 
-
-# Install gosu
-#RUN set -eux; \
-#	apk update; \
-#	apk add --no-cache su-exec;
-
 # Entrypoint
 ENTRYPOINT ["/opt/minecraft/docker-entrypoint.sh"]
 

os-base/Dockerfile

@@ -0,0 +1,16 @@
+########################################################
+############## We use a java base image ################
+########################################################
+FROM debian:sid
+# Set environment variables to avoid interactive prompts
+ENV DEBIAN_FRONTEND=noninteractive
+ENV APT_LISTCHANGES_FRONTEND=none
+
+RUN ls -lah /etc/apt/sources.list.d/
+RUN sed -i -e's/ main/ main contrib non-free/g' /etc/apt/sources.list.d/debian.sources
+RUN apt update && apt install -y curl jq bash sudo wget gnupg2
+
+RUN wget -O - https://apt.corretto.aws/corretto.key | gpg --dearmor -o /usr/share/keyrings/corretto-keyring.gpg && \
+    echo "deb [signed-by=/usr/share/keyrings/corretto-keyring.gpg] https://apt.corretto.aws stable main" | tee /etc/apt/sources.list.d/corretto.list
+
+RUN apt-get update && apt-get install -y java-21-amazon-corretto-jdk libxi6 libxtst6 libxrender1