use debian bullseye-slim (#60)

* use debian bullseye-slim

* Use chmod arguments instead of commands
https://docs.google.com/document/d/1Ydhdgm2-eu30xV003wlvxQWnC2wuvX3xdPcXNVBuyvg

* suggest optimiztions

* add gecos

Co-authored-by: Ilia Medvedev <[email protected]>

Author: andrii-codefresh

.gitignore

@@ -0,0 +1 @@
+.idea/

Dockerfile

@@ -3,6 +3,7 @@ FROM alpine:3.6 AS builder
 RUN apk update && apk add curl
 
 RUN export ARCH=$([[ "$(uname -m)" == "aarch64" ]] && echo "arm64" || echo "amd64") && \
+    mkdir -p /tmp/kubectl-versions && cd /tmp/kubectl-versions  \
     curl -o kubectl1.22 -L https://storage.googleapis.com/kubernetes-release/release/v1.22.0/bin/linux/${ARCH}/kubectl && \
     curl -o kubectl1.21 -L https://storage.googleapis.com/kubernetes-release/release/v1.21.0/bin/linux/${ARCH}/kubectl && \
     curl -o kubectl1.20 -L https://storage.googleapis.com/kubernetes-release/release/v1.20.0/bin/linux/${ARCH}/kubectl && \
@@ -19,49 +20,18 @@ RUN export ARCH=$([[ "$(uname -m)" == "aarch64" ]] && echo "arm64" || echo "amd6
     curl -o kubectl1.6 -L https://storage.googleapis.com/kubernetes-release/release/v1.6.0/bin/linux/${ARCH}/kubectl
 
 
-FROM alpine:3.15.6
+FROM debian:bullseye-slim
 
-RUN apk --no-cache update && apk upgrade && apk add --update bash
+RUN adduser --gecos "" --disabled-password --home /home/cfu --shell /bin/bash cfu
 
-#copy all versions of kubectl to switch between them later.
-COPY --from=builder kubectl1.22 /usr/local/bin/
-COPY --from=builder kubectl1.21 /usr/local/bin/
-COPY --from=builder kubectl1.20 /usr/local/bin/
-COPY --from=builder kubectl1.19 /usr/local/bin/
-COPY --from=builder kubectl1.18 /usr/local/bin/
-COPY --from=builder kubectl1.17 /usr/local/bin/
-COPY --from=builder kubectl1.16 /usr/local/bin/
-COPY --from=builder kubectl1.15 /usr/local/bin/
-COPY --from=builder kubectl1.14 /usr/local/bin/
-COPY --from=builder kubectl1.13 /usr/local/bin/
-COPY --from=builder kubectl1.12 /usr/local/bin/
-COPY --from=builder kubectl1.11 /usr/local/bin/
-COPY --from=builder kubectl1.10 /usr/local/bin/kubectl
-COPY --from=builder kubectl1.6 /usr/local/bin/
+#RUN apt update && apt upgrade && apt install bash # THIS IS NOT REQUIRED. BASH IS ALREADY INCLUDED IN BULLSEYE
 
-RUN chmod +x /usr/local/bin/kubectl \
-    /usr/local/bin/kubectl1.6 \
-    /usr/local/bin/kubectl1.11 \
-    /usr/local/bin/kubectl1.12 \
-    /usr/local/bin/kubectl1.13 \
-    /usr/local/bin/kubectl1.14 \
-    /usr/local/bin/kubectl1.15 \
-    /usr/local/bin/kubectl1.16 \
-    /usr/local/bin/kubectl1.17 \
-    /usr/local/bin/kubectl1.18 \
-    /usr/local/bin/kubectl1.19 \
-    /usr/local/bin/kubectl1.20 \
-    /usr/local/bin/kubectl1.21 \
-    /usr/local/bin/kubectl1.22
+#copy all versions of kubectl to switch between them later.
+COPY --chown=cfu --chmod=775 --from=builder /tmp/kubectl-versions/* /usr/local/bin/
+RUN cp /usr/local/bin/kubectl1.10 /usr/local/bin/kubectl
 
 WORKDIR /
-
-ADD cf-deploy-kubernetes.sh /cf-deploy-kubernetes
-ADD template.sh /template.sh
-
-RUN adduser -D -h /home/cfu -s /bin/bash cfu \
-    && chgrp -R $(id -g cfu) /cf-deploy-kubernetes /usr/local/bin /template.sh \
-    && chmod -R g+rwX /cf-deploy-kubernetes /usr/local/bin /template.sh
+ADD --chown=cfu --chmod=775 cf-deploy-kubernetes.sh /cf-deploy-kubernetes
+ADD --chown=cfu --chmod=775 template.sh /template.sh
 USER cfu
-
 CMD ["bash"]

service.yaml

@@ -1 +1 @@
-version: 16.1.11
+version: 16.2.0