Masterless CI of Salt.

salt-dry-run-single.sh

#!/bin/bash
set -eu

MINIONID="$1"
SYNCMODULESLOG=$(mktemp)
SHOWTOPLOG=$(mktemp)
PILLARITEMSLOG=$(mktemp)
SHOWHIGHSTATELOG=$(mktemp)

# `--force-color` below is needed since we are writing output to a file.

# Without this, custom execution modules (and other execution modules for that matter) will not be synced when executing `state.show_highstate` below.
salt-call --force-color --local --retcode-passthrough --id="$MINIONID" saltutil.sync_modules &> "$SYNCMODULESLOG" &

# Must be run before `state.show_highstate`. There's a race condition between them. Alternative is to use two different IPC sockets in the future.
salt-call --force-color --local --retcode-passthrough --id="$MINIONID" state.show_top &> "$SHOWTOPLOG" &

# Wait for all jobs above to finish.
EXITCODE=0
wait %1 || EXITCODE=$?
wait %2 || EXITCODE=$?

# Run these in parallel to speed things up.
salt-call --force-color --local --retcode-passthrough --id="$MINIONID" pillar.items &> "$PILLARITEMSLOG" &
salt-call --force-color --local --retcode-passthrough --id="$MINIONID" state.show_highstate &> "$SHOWHIGHSTATELOG" &

# Wait for all jobs above to finish.
wait %1 || EXITCODE=$?
wait %2 || EXITCODE=$?

if [ $EXITCODE -ne 0 ]
then
    echo "--- salt $MINIONID saltutil.sync_modules"
    cat "$SYNCMODULESLOG"

    echo "--- salt $MINIONID state.show_top"
    cat "$SHOWTOPLOG"

    echo "--- salt $MINIONID pillar.items"
    cat "$PILLARITEMSLOG"

    echo "--- salt $MINIONID state.show_highstate"
    cat "$SHOWHIGHSTATELOG"
else
    echo "Calculating highstate $MINIONID succeeded."
fi

rm "$SYNCMODULESLOG"
rm "$SHOWTOPLOG"
rm "$PILLARITEMSLOG"
rm "$SHOWHIGHSTATELOG"

exit $EXITCODE

salt-dry-run.sh

#!/bin/bash
set -eu

find . -name top.sls -exec grep --no-filename '^  # CI example:' {} + | sed 's/.*# CI example: //' | sort | uniq | while read -r MINIONID
do
    ./salt-dry-run-single.sh "$MINIONID"
done