FROM alpine
RUN cat << 'EOF' > /root/.zshrc
setopt PROMPT_SUBST
autoload -U colors && colors
PS1='%n@%m %~ $ '
EOF
$ dockerfile-utils lint
Line: 3
setopt PROMPT_SUBST
^^^^^^
Error: Unknown instruction: SETOPT
Line: 4
autoload -U colors && colors
^^^^^^^^
Error: Unknown instruction: AUTOLOAD
Line: 5
PS1='%n@%m %~ $ '
^^^^^^^^^^
Error: Unknown instruction: PS1='%N@%M
Line: 6
EOF
^^^
Error: Unknown instruction: EOF
docker build --no-cache -t rcjsuen:latest -f Dockerfile .
[+] Building 0.2s (6/6) FINISHED docker:desktop-linux
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 156B 0.0s
=> [internal] load metadata for docker.io/library/alpine:latest 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> CACHED [1/2] FROM docker.io/library/alpine:latest@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc 0.0s
=> => resolve docker.io/library/alpine:latest@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990 0.0s
=> [2/2] RUN cat << 'EOF' > /root/.zshrc 0.1s
=> exporting to image 0.1s
=> => exporting layers 0.0s
=> => exporting manifest sha256:def637f63177b0fb4c9411da03d9499e58f297209317ad732c7c1695df85bc41 0.0s
=> => exporting config sha256:d8849b5a5847ffe80dc2cf85e29c1e4e67a43389917db05764c4043e73a0a2ae 0.0s
=> => exporting attestation manifest sha256:9a1649cd7dba418a055619d2fee7dec7a004a0c0d49d84fbbd5804e6176209a 0.0s
=> => exporting manifest list sha256:bb42cf0e01335d8dd6c8b621fc13a9afa511e7a0150c1c4a8f93502b2fac2fe8 0.0s
=> => naming to docker.io/library/rcjsuen:latest 0.0s
=> => unpacking to docker.io/library/rcjsuen:latest 0.0s