mirror of
https://github.com/deuill/coreos-home-server.git
synced 2024-09-21 13:40:45 +00:00
Alex Palaistras
84a17f6df3
This commit extends our `coreos-home-server-update` script with support for updating host directories with configuration collected across multiple remote directories of the same name. This will, essentially, allow for extending systemd services with custom configuration, as sometimes required of base systemd service files.
90 lines
3.5 KiB
Bash
Executable File
90 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Hook for updating local configuration on each pull. This will automatically put files in their
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# right places, but will not enable or start any services automatically; this is left to the user.
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#
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# Move this to '.git/hooks/post-merge' to have to run automatically after every 'git pull' operation.
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# The script assumes write access to host directories, and a CoreOS host. Don't run on other systems!
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set -euo pipefail
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shopt -s globstar
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# Global configuration variables.
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TEMP_CONFIG_PATH="$(git -C "$(dirname "$0")" rev-parse --show-toplevel)"
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HOST_CONFIG_PATH="/etc/coreos-home-server"
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SYSTEMD_CONFIG_PATH="/etc/systemd/system"
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# Synchronize CoreOS home-server configuration for specific path.
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function sync-coreos-config() {
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local hostdir="$1"
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local dirname="$(basename "$hostdir")"
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# Check if any remote configuration exists for the name given.
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if ! compgen -G "$TEMP_CONFIG_PATH"/*/"$dirname" > /dev/null; then
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printf "configuration not found, skipping.\n"
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return
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fi
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# Collect remote configuration files across base directories.
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for tmpdir in "$TEMP_CONFIG_PATH"/*/"$dirname"; do
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# Update timestamp for temporary file to match last commit time, in order to ensure correct partial updates.
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for f in "$tmpdir/"**; do
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# Skip directories, as updating their commit times will have all files within be synchronized.
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if test -d "$f"; then
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continue
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fi
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touch -t "$(cd "$tmpdir" && git log -n 1 --pretty=format:%cd --date=format-local:%Y%m%d%H%M.%S --date-order -- "$f")" -- "$f"
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done
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# Link source files into temporary destination directory.
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mkdir --parents "$TEMP_CONFIG_PATH/.tmp/$dirname"
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cp --archive --force --target-directory "$TEMP_CONFIG_PATH/.tmp/$dirname" "$tmpdir"/.
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done
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# Remove files that only exist in local configuration.
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for f in $(comm -23 <(cd "$hostdir"; find . | sort) <(cd "$TEMP_CONFIG_PATH/.tmp/$dirname"; find . | sort)); do
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# Don't delete environment files, as these are required for active services.
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if test "$(basename --suffix=.env "$f")" != "$(basename "$f")"; then
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continue
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fi
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rm --verbose --recursive --force "$(realpath --quiet "$hostdir/$f")"
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done
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# Copy files from temporary directory to host configuration directory.
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cp --verbose --recursive --update --target-directory "$hostdir" "$TEMP_CONFIG_PATH/.tmp/$dirname"/*
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printf "done.\n"
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}
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# Synchronize systemd service files from CoreOS home-server configuration.
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function sync-systemd-services() {
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local buffer="" tmp
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# Copy service files if newer than destination.
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for src in "$HOST_CONFIG_PATH"/*/systemd/*; do
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tmp="$(cp --verbose --recursive --update --target-directory "$SYSTEMD_CONFIG_PATH" "$src")"
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if test -n "$tmp"; then buffer="${buffer}"$'\n'"${tmp}"; fi
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done
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printf "%s\ndone.\n" "$buffer"
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if test -n "$buffer"; then return 0; else return 1; fi
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}
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# Synchronize all existing CoreOS home-server configuration.
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for hostdir in "$HOST_CONFIG_PATH"/*; do
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if test ! -d "$hostdir"; then
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continue
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fi
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printf "Synchronizing host configuration for '%s'... " "$hostdir"
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sync-coreos-config "$hostdir"
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done
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# Synchronize systemd services from local CoreOS home-server configuration.
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printf "Synchronizing systemd service files... "
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if sync-systemd-services; then
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printf "Reloading systemd daemon after service updates...\n"
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systemctl daemon-reload
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fi
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