Use busybox-like base image to reduce size

Signed-off-by: Andrea Mazzotti <[email protected]>
rancher · Jun 5, 2024 · 4c21469 · 4c21469
1 parent 3005a75
commit 4c21469
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diff --git a/.obs/dockerfile/Dockerfile.sle-micro-5-5 b/.obs/dockerfile/Dockerfile.sle-micro-5-5
@@ -4,12 +4,21 @@
 
 ARG SLMICRO_VERSION
 
-FROM suse/sl-micro/${SLMICRO_VERSION}/toolbox:latest
+FROM suse/sl-micro/${SLMICRO_VERSION}/toolbox:latest as toolbox
+
+# Prepare a busybox base
+RUN mkdir -p /busybox && rpm --initdb --root /busybox
+RUN zypper --installroot /busybox in --no-recommends -y busybox
 
 ARG CHANNEL_JSON_FILE="sle-micro-5-5.json"
 
 COPY $CHANNEL_JSON_FILE /channel.json
 
+FROM scratch
+
+COPY --from=toolbox /busybox /
+COPY --from=toolbox /channel.json /channel.json
+
 USER 10010:10010
 
 # Define labels according to https://en.opensuse.org/Building_derived_containers

diff --git a/.obs/dockerfile/Dockerfile.sle-micro-5-5-kvm b/.obs/dockerfile/Dockerfile.sle-micro-5-5-kvm
@@ -4,12 +4,21 @@
 
 ARG SLMICRO_VERSION
 
-FROM suse/sl-micro/${SLMICRO_VERSION}/toolbox:latest
+FROM suse/sl-micro/${SLMICRO_VERSION}/toolbox:latest as toolbox
+
+# Prepare a busybox base
+RUN mkdir -p /busybox && rpm --initdb --root /busybox
+RUN zypper --installroot /busybox in --no-recommends -y busybox
 
 ARG CHANNEL_JSON_FILE="sle-micro-5-5-kvm.json"
 
 COPY $CHANNEL_JSON_FILE /channel.json
 
+FROM scratch
+
+COPY --from=toolbox /busybox /
+COPY --from=toolbox /channel.json /channel.json
+
 USER 10010:10010
 
 # Define labels according to https://en.opensuse.org/Building_derived_containers

diff --git a/.obs/dockerfile/Dockerfile.sle-micro-5-5-rt b/.obs/dockerfile/Dockerfile.sle-micro-5-5-rt
@@ -4,12 +4,21 @@
 
 ARG SLMICRO_VERSION
 
-FROM suse/sl-micro/${SLMICRO_VERSION}/toolbox:latest
+FROM suse/sl-micro/${SLMICRO_VERSION}/toolbox:latest as toolbox
+
+# Prepare a busybox base
+RUN mkdir -p /busybox && rpm --initdb --root /busybox
+RUN zypper --installroot /busybox in --no-recommends -y busybox
 
 ARG CHANNEL_JSON_FILE="sle-micro-5-5-rt.json"
 
 COPY $CHANNEL_JSON_FILE /channel.json
 
+FROM scratch
+
+COPY --from=toolbox /busybox /
+COPY --from=toolbox /channel.json /channel.json
+
 USER 10010:10010
 
 # Define labels according to https://en.opensuse.org/Building_derived_containers