added entrypoint script

webhooks-git/Dockerfile

@@ -4,7 +4,7 @@ COPY        hooks.json.example /etc/webhook/hooks.json
 FROM        alpine:latest
 RUN         apk --no-cache add git openssh-client bash nano
 COPY        --from=build /usr/local/bin/webhook /usr/local/bin/webhook
+COPY        entrypoint.sh /etc/webhook/entrypoint.sh
 WORKDIR     /etc/webhook
 EXPOSE      9000
-ENTRYPOINT  ["/usr/local/bin/webhook"]
+ENTRYPOINT  ["/etc/webhook/entrypoint.sh"]
-CMD ["-verbose", "-hooks=/etc/webhook/hooks.json", "-hotreload"]

webhooks-git/entrypoint.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+#
+# Create hosts.json with by replacing environment variables in template file
+#
+
+# Define the template file path
+template_file="/etc/webhook/hook.json.tmpl"
+
+# Define the output file path
+output_file="/etc/webhook/hook.json"
+
+# Check if the template file exists
+if [ ! -f "$template_file" ]; then
+    echo "Template file $template_file not found."
+    exit 1
+fi
+
+envsubst < "$template_file" > "$output_file"
+
+echo "Generated $output_file"
+
+#
+# Start webhooks
+#
+
+echo "Starting webhooks service"
+exec /usr/local/bin/webhook -verbose -hooks=/etc/webhook/hooks.json -hotreload