Merge pull request #2 from infosiftr/downstream-github-actions

Add initial scripts for image maintainers to use to auto-generate appropriate GitHub Actions
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yosifkit 2020-04-27 17:42:30 -07:00 committed by GitHub
commit c74be66ae6
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name: GitHub CI
on:
pull_request:
push:
schedule:
- cron: 0 0 * * 0
defaults:
run:
shell: 'bash -Eeuo pipefail -x {0}'
jobs:
generate-jobs:
name: Generate Jobs
runs-on: ubuntu-latest
outputs:
strategy: ${{ steps.generate-jobs.outputs.strategy }}
steps:
- uses: actions/checkout@v1
- id: generate-jobs
name: Generate Jobs
run: |
git clone --depth 1 https://github.com/docker-library/bashbrew.git -b master ~/bashbrew
strategy="$(~/bashbrew/scripts/github-actions/generate.sh)"
jq . <<<"$strategy" # sanity check / debugging aid
echo "::set-output name=strategy::$strategy"
test:
needs: generate-jobs
strategy: ${{ fromJson(needs.generate-jobs.outputs.strategy) }}
name: ${{ matrix.name }}
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v1
- name: Prepare Environment
run: ${{ matrix.runs.prepare }}
- name: Pull Dependencies
run: ${{ matrix.runs.pull }}
- name: Build ${{ matrix.name }}
run: ${{ matrix.runs.build }}
- name: History ${{ matrix.name }}
run: ${{ matrix.runs.history }}
- name: Test ${{ matrix.name }}
run: ${{ matrix.runs.test }}
- name: '"docker images"'
run: ${{ matrix.runs.images }}

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#!/usr/bin/env bash
set -Eeuo pipefail
image="${GITHUB_REPOSITORY##*/}" # "python", "golang", etc
[ -n "${GENERATE_STACKBREW_LIBRARY:-}" ] || [ -x ./generate-stackbrew-library.sh ] # sanity check
tmp="$(mktemp -d)"
trap "$(printf 'rm -rf %q' "$tmp")" EXIT
if ! command -v bashbrew &> /dev/null; then
dir="$(readlink -f "$BASH_SOURCE")"
dir="$(dirname "$dir")"
dir="$(cd "$dir/../.." && pwd -P)"
if [ ! -x "$dir/bin/bashbrew" ]; then
echo >&2 'Building bashbrew ...'
"$dir/bashbrew.sh" --version > /dev/null
"$dir/bin/bashbrew" --version >&2
fi
export PATH="$dir/bin:$PATH"
bashbrew --version > /dev/null
fi
mkdir "$tmp/library"
export BASHBREW_LIBRARY="$tmp/library"
eval "${GENERATE_STACKBREW_LIBRARY:-./generate-stackbrew-library.sh}" > "$BASHBREW_LIBRARY/$image"
tags="$(bashbrew list --build-order --uniq "$image")"
# see https://github.com/docker-library/python/commit/6b513483afccbfe23520b1f788978913e025120a for the ideal of what this would be (minimal YAML in all 30+ repos, shared shell script that outputs fully dynamic steps list), if GitHub Actions were to support a fully dynamic steps list
order=()
declare -A metas=()
for tag in $tags; do
echo >&2 "Processing $tag ..."
bashbrewImage="${tag##*/}" # account for BASHBREW_NAMESPACE being set
meta="$(
bashbrew cat --format '
{{- $e := .TagEntry -}}
{{- "{" -}}
"name": {{- json ($e.Tags | first) -}},
"tags": {{- json ($.Tags namespace false $e) -}},
"directory": {{- json $e.Directory -}},
"file": {{- json $e.File -}},
"constraints": {{- json $e.Constraints -}},
"froms": {{- json ($.DockerFroms $e) -}}
{{- "}" -}}
' "$bashbrewImage" | jq -c '
{
name: .name,
os: (
if (.constraints | contains(["windowsservercore-1809"])) or (.constraints | contains(["nanoserver-1809"])) then
"windows-2019"
elif .constraints | contains(["windowsservercore-ltsc2016"]) then
"windows-2016"
elif .constraints == [] or .constraints == ["!aufs"] then
"ubuntu-latest"
else
# use an intentionally invalid value so that GitHub chokes and we notice something is wrong
"invalid-or-unknown"
end
),
meta: { entries: [ . ] },
runs: {
build: (
[
"docker build"
]
+ (
.tags
| map(
"--tag " + (. | @sh)
)
)
+ if .file != "Dockerfile" then
[ "--file", (.file | @sh) ]
else
[]
end
+ [
(.directory | @sh)
]
| join(" ")
),
history: ("docker history " + (.tags[0] | @sh)),
test: ("~/oi/test/run.sh " + (.tags[0] | @sh)),
},
}
'
)"
parent="$(bashbrew parents "$bashbrewImage" | tail -1)" # if there ever exists an image with TWO parents in the same repo, this will break :)
if [ -n "$parent" ]; then
parentBashbrewImage="${parent##*/}" # account for BASHBREW_NAMESPACE being set
parent="$(bashbrew list --uniq "$parentBashbrewImage")" # normalize
parentMeta="${metas["$parent"]}"
parentMeta="$(jq -c --argjson meta "$meta" '
. + {
name: (.name + ", " + $meta.name),
os: (if .os == $meta.os then .os else "invalid-os-chain--" + .os + "+" + $meta.os end),
meta: { entries: (.meta.entries + $meta.meta.entries) },
runs: (
.runs
| to_entries
| map(
.value += "\n" + $meta.runs[.key]
)
| from_entries
),
}
' <<<"$parentMeta")"
metas["$parent"]="$parentMeta"
else
metas["$tag"]="$meta"
order+=( "$tag" )
fi
done
strategy="$(
for tag in "${order[@]}"; do
jq -c '
.meta += {
froms: (
[ .meta.entries[].froms[] ]
- [ .meta.entries[].tags[] ]
),
dockerfiles: [
.meta.entries[]
| .directory + "/" + .file
],
}
| .runs += {
prepare: ([
(
if .os | startswith("windows-") then
"# enable symlinks on Windows (https://git-scm.com/docs/git-config#Documentation/git-config.txt-coresymlinks)",
"git config --global core.symlinks true",
"# ... make sure they are *real* symlinks (https://github.com/git-for-windows/git/pull/156)",
"export MSYS=winsymlinks:nativestrict",
"# make sure line endings get checked out as-is",
"git config --global core.autocrlf false"
else
empty
end
),
"git clone --depth 1 https://github.com/docker-library/official-images.git -b master ~/oi",
"# create a dummy empty image/layer so we can --filter since= later to get a meanginful image list",
"{ echo FROM " + (
if (.os | startswith("windows-")) then
"mcr.microsoft.com/windows/servercore:ltsc" + (.os | ltrimstr("windows-"))
else
"busybox:latest"
end
) + "; echo RUN :; } | docker build --no-cache --tag image-list-marker -",
(
if .os | startswith("windows-") | not then
(
"# PGP Happy Eyeballs",
"git clone --depth 1 https://github.com/tianon/pgp-happy-eyeballs.git ~/phe",
"~/phe/hack-my-builds.sh",
"rm -rf ~/phe"
)
else
empty
end
)
] | join("\n")),
pull: ([ .meta.froms[] | select(. != "scratch") | "docker pull " + @sh ] | join("\n")),
# build
# history
# test
images: "docker image ls --filter since=image-list-marker",
}
' <<<"${metas["$tag"]}"
done | jq -cs '
{
"fail-fast": false,
matrix: { include: . },
}
'
)"
if [ -t 1 ]; then
jq <<<"$strategy"
else
cat <<<"$strategy"
fi

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#!/usr/bin/env bash
set -Eeuo pipefail
jq --arg dpkgSmokeTest '[ "$(dpkg --print-architecture)" = "amd64" ]' '
.matrix.include += [
.matrix.include[]
| select(.name | test(" (.+)") | not) # ignore any existing munged builds
| select(.os | startswith("windows-") | not)
| .name += " (i386)"
| .runs.pull = ([
"# pull i386 variants of base images for multi-architecture testing",
$dpkgSmokeTest,
(
.meta.froms[]
| ("i386/" + . | @sh) as $i386
| (
"docker pull " + $i386,
"docker tag " + $i386 + " " + @sh
)
)
] | join("\n"))
]
' "$@"