packaging: fix Dockerfile to support dependabot updates (#2469)

Dependabot does not update ARG instruction and updates only the first FROM instruction, see dependabot/dependabot-core#2057 This change uses workaround described here dependabot/dependabot-core#2057 (comment) Signed-off-by: Alexander Yastrebov <[email protected]>
zalando · Jul 17, 2023 · 94f4d6b · 94f4d6b
1 parent a5f90bf
commit 94f4d6b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/packaging/Dockerfile b/packaging/Dockerfile
@@ -1,4 +1,5 @@
-ARG BASE_IMAGE=registry.opensource.zalan.do/library/alpine-3:latest@sha256:2924ef858efe1025d8f4094b1e3ee6f86db2d3e211052c06e0c8afb86643d46a
+ARG BASE_IMAGE=default
+FROM registry.opensource.zalan.do/library/alpine-3:latest@sha256:2924ef858efe1025d8f4094b1e3ee6f86db2d3e211052c06e0c8afb86643d46a AS default
 FROM ${BASE_IMAGE}
 LABEL maintainer="Team Gateway&Proxy @ Zalando SE <[email protected]>"
 RUN apk --no-cache add ca-certificates && update-ca-certificates