diff --git a/.woodpecker.yaml b/.woodpecker.yaml
index 60178e7..ef2ef38 100644
--- a/.woodpecker.yaml
+++ b/.woodpecker.yaml
@@ -1,4 +1,11 @@
 steps:
+  - name: Generate config file
+    image: bash
+    environment:
+      CONFIGJSON:
+        from_secret: config_json
+    commands:
+      - ./generate.sh
   - name: build-container
     image: woodpeckerci/plugin-docker-buildx
     settings:
diff --git a/Containerfile b/Containerfile
index 8e39011..ae1f2c6 100644
--- a/Containerfile
+++ b/Containerfile
@@ -3,7 +3,7 @@ WORKDIR /srv
 COPY . .
 RUN pip install --no-cache-dir -r requirements.txt
 RUN pip install .
-RUN --mount=type=secret,id=config_json ./create_packs.sh
+RUN ./create_packs.sh
 
 FROM nginx:alpine
 COPY --from=0 /srv/web /usr/share/nginx/html
diff --git a/create_packs.sh b/create_packs.sh
index a67483e..7fea103 100755
--- a/create_packs.sh
+++ b/create_packs.sh
@@ -1,15 +1,9 @@
 #!/bin/bash
-echo "$PLUGIN_CONFIGJSON" >> config.json
-
-if [ ! -s config.json ]; then
-	echo "no config found"
+if [ ! -f config.json ]; then
+	echo "no config found during sitcker generation"
 	exit 1
 fi
-if [[ -z $(grep '[^[:space:]]' "config.json") ]] ; then
-  echo "no config in file"
-  exit 1
-fi
-
 for d in packs/*/ ; do
     sticker-pack "$d" --add-to-index web/packs/
 done
+rm config.json
diff --git a/generate.sh b/generate.sh
new file mode 100755
index 0000000..5812bdf
--- /dev/null
+++ b/generate.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+touch config.json
+cat >./config.json <<EOF
+$CONFIGJSON
+EOF
+if [ ! -s config.json ]; then
+	echo "no config found"
+	exit 1
+fi
+if [[ -z $(grep '[^[:space:]]' "config.json") ]] ; then
+  echo "no config in file"
+  rm config.json
+  exit 1
+fi