e1359b1b5f
Close the producer/consumer certificate contract and advance the immutable correction release to alpha.14.
102 lines
2.9 KiB
Bash
102 lines
2.9 KiB
Bash
#!/usr/bin/env bash
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set -Eeuo pipefail
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IFS=$'\n\t'
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readonly PROGRAM_NAME="smm-setup"
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readonly DEFAULT_RELEASE_TAG="v0.1.0-alpha.14"
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readonly DEFAULT_REPOSITORY="ochenstarik-ui/server-monitor-manager"
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readonly INNER_ASSET="ochenstarik-server-monitor-manager.sh"
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RELEASE_TAG="${SMM_TAG:-$DEFAULT_RELEASE_TAG}"
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REPOSITORY="${SMM_REPOSITORY:-$DEFAULT_REPOSITORY}"
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CACHE_DIR="${SMM_CACHE_DIR:-${XDG_CACHE_HOME:-$HOME/.cache}/server-monitor-manager}"
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usage() {
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cat <<'USAGE'
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Usage:
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smm-setup.sh [--tag TAG] [--repository OWNER/REPO] COMMAND [ARG...]
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Commands are passed to the verified ochenstarik-server-monitor-manager.sh
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asset from the selected immutable GitHub release. Common commands:
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install-agent | install-control | uninstall-agent | uninstall-control
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backup-create | backup-restore | version
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Environment overrides:
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SMM_TAG Release tag (default: v0.1.0-alpha.14)
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SMM_REPOSITORY GitHub repository (default: ochenstarik-ui/server-monitor-manager)
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SMM_CACHE_DIR Verified-download cache directory
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USAGE
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}
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die() {
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printf '%s: %s\n' "$PROGRAM_NAME" "$*" >&2
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exit 1
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}
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require_command() {
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command -v "$1" >/dev/null 2>&1 || die "required command is unavailable: $1"
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}
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--tag)
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[[ $# -ge 2 ]] || die '--tag requires a value'
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RELEASE_TAG="$2"
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shift 2
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;;
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--repository)
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[[ $# -ge 2 ]] || die '--repository requires a value'
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REPOSITORY="$2"
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shift 2
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;;
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-h|--help)
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usage
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exit 0
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;;
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--)
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shift
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break
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;;
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-*)
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die "unknown option: $1"
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;;
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*)
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break
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;;
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esac
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done
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[[ $# -gt 0 ]] || {
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usage >&2
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exit 2
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}
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[[ "$RELEASE_TAG" =~ ^v[0-9]+\.[0-9]+\.[0-9]+([.-][0-9A-Za-z.-]+)?$ ]] \
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|| die "invalid release tag: $RELEASE_TAG"
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[[ "$REPOSITORY" =~ ^[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+$ ]] \
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|| die "invalid repository: $REPOSITORY"
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require_command curl
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require_command sha256sum
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require_command mktemp
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release_base="https://github.com/$REPOSITORY/releases/download/$RELEASE_TAG"
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cache_release="$CACHE_DIR/$REPOSITORY/$RELEASE_TAG"
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cached_script="$cache_release/$INNER_ASSET"
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cached_checksum="$cache_release/$INNER_ASSET.sha256"
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mkdir -p "$cache_release"
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temporary_directory="$(mktemp -d -t smm-setup.XXXXXXXX)"
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trap 'rm -rf -- "$temporary_directory"' EXIT
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curl -fsSL "$release_base/$INNER_ASSET" -o "$temporary_directory/$INNER_ASSET"
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curl -fsSL "$release_base/$INNER_ASSET.sha256" -o "$temporary_directory/$INNER_ASSET.sha256"
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(
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cd "$temporary_directory"
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sha256sum -c "$INNER_ASSET.sha256"
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) || die "checksum verification failed for $RELEASE_TAG/$INNER_ASSET"
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install -m 0755 "$temporary_directory/$INNER_ASSET" "$cached_script"
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install -m 0644 "$temporary_directory/$INNER_ASSET.sha256" "$cached_checksum"
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exec "$cached_script" "$@"
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