Fix OS PRETTY_NAME on tagged releases

These were always showing up as dev due to the build arg not being set by the drone step.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
(cherry picked from commit eae221f9e5)
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

.drone.yml

@@ -102,6 +102,8 @@ steps:
     repo: "rancher/k3s"
     username:
       from_secret: docker_username
+    build_args_from_env:
+      - DRONE_TAG
   when:
     instance:
     - drone-publish.k3s.io
@@ -270,6 +272,8 @@ steps:
     repo: "rancher/k3s"
     username:
       from_secret: docker_username
+    build_args_from_env:
+      - DRONE_TAG
   when:
     instance:
     - drone-publish.k3s.io
@@ -379,6 +383,8 @@ steps:
     repo: "rancher/k3s"
     username:
       from_secret: docker_username
+    build_args_from_env:
+      - DRONE_TAG
   when:
     instance:
     - drone-publish.k3s.io
@@ -496,7 +502,6 @@ steps:
     - DOCKER_USERNAME
     - DOCKER_PASSWORD
     - DRONE_TAG
-
 trigger:
   instance:
   - drone-publish.k3s.io

package/Dockerfile

@@ -5,14 +5,17 @@ RUN mkdir -p /image/etc/ssl/certs /image/run /image/var/run /image/tmp /image/li
     tar -xa -C /image -f /data.tar.zst && \
     cp /etc/ssl/certs/ca-certificates.crt /image/etc/ssl/certs/ca-certificates.crt
 
-FROM scratch
-ARG VERSION="dev"
+FROM scratch as collect
+ARG DRONE_TAG="dev"
 COPY --from=base /image /
 COPY --from=base /usr/share/zoneinfo /usr/share/zoneinfo
 RUN mkdir -p /etc && \
     echo 'hosts: files dns' > /etc/nsswitch.conf && \
-    echo "PRETTY_NAME=\"K3s ${VERSION}\"" > /etc/os-release && \
+    echo "PRETTY_NAME=\"K3s ${DRONE_TAG}\"" > /etc/os-release && \
     chmod 1777 /tmp
+
+FROM scratch
+COPY --from=collect / /
 VOLUME /var/lib/kubelet
 VOLUME /var/lib/rancher/k3s
 VOLUME /var/lib/cni

scripts/package-image

@@ -14,6 +14,6 @@ PROXY_OPTS=
 [ -z "$http_proxy" ] || PROXY_OPTS="$PROXY_OPTS --build-arg http_proxy=$http_proxy"
 [ -z "$https_proxy" ] || PROXY_OPTS="$PROXY_OPTS --build-arg https_proxy=$https_proxy"
 [ -z "$no_proxy" ] || PROXY_OPTS="$PROXY_OPTS --build-arg no_proxy=$no_proxy"
-docker build ${PROXY_OPTS} --build-arg VERSION=${VERSION} -t ${IMAGE} -f package/Dockerfile .
+docker build ${PROXY_OPTS} --build-arg DRONE_TAG=${VERSION_TAG} -t ${IMAGE} -f package/Dockerfile .
 ./scripts/image_scan.sh ${IMAGE} ${ARCH}
 echo Built ${IMAGE}