Introduce pyroscope packaging via nfpm

.goreleaser.yaml

@@ -142,6 +142,25 @@ docker_manifests:
       - grafana/{{ .ProjectName }}:latest-arm64v8
       - grafana/{{ .ProjectName }}:latest-armv6
       - grafana/{{ .ProjectName }}:latest-armv7
+nfpms:
+  - id: pyroscope
+    formats:
+      - deb
+      - rpm
+    section: default
+    maintainer: Grafana Labs <[email protected]>
+    vendor: Grafana Labs Inc
+    homepage: https://grafana.com/pyroscope
+    license: AGPL-3.0
+    contents:
+      - src: ./tools/packaging/pyroscope.service
+        dst: /etc/systemd/system/pyroscope.service
+      - src: ./cmd/pyroscope/pyroscope.yaml
+        dst: /etc/pyroscope/config.yml
+        type: config|noreplace
+    scripts:
+      postinstall: ./tools/packaging/postinstall.sh
+
 archives:
   - id: pyroscope
     builds:

Makefile

@@ -312,7 +312,7 @@ $(BIN)/updater: Makefile
 
 $(BIN)/goreleaser: Makefile go.mod
 	@mkdir -p $(@D)
-	GOBIN=$(abspath $(@D)) $(GO) install github.com/goreleaser/goreleaser@v1.14.1
+	GOBIN=$(abspath $(@D)) $(GO) install github.com/goreleaser/goreleaser@v1.20.0
 
 $(BIN)/gotestsum: Makefile go.mod
 	@mkdir -p $(@D)

tools/packaging/postinstall.sh

@@ -0,0 +1,62 @@
+#!/bin/sh
+
+# Based on https://nfpm.goreleaser.com/tips/
+
+if ! command -V systemctl >/dev/null 2>&1; then
+  echo "Could not find systemd. Skipping system installation." && exit 0
+else
+    systemd_version=$(systemctl --version | awk '/systemd /{print $2}')
+fi
+
+cleanInstall() {
+    printf "\033[32m Post Install of a clean install\033[0m\n"
+
+    # Create the user
+    if ! id pyroscope > /dev/null 2>&1 ; then
+        adduser --system --shell /bin/false "pyroscope"
+    fi
+
+    # rhel/centos7 cannot use ExecStartPre=+ to specify the pre start should be run as root
+    # even if you want your service to run as non root.
+    if [ "${systemd_version}" -lt 231 ]; then
+        printf "\033[31m systemd version %s is less then 231, fixing the service file \033[0m\n" "${systemd_version}"
+        sed -i "s/=+/=/g" /etc/systemd/system/pyroscope.service
+    fi
+    printf "\033[32m Reload the service unit from disk\033[0m\n"
+    systemctl daemon-reload ||:
+    printf "\033[32m Unmask the service\033[0m\n"
+    systemctl unmask pyroscope ||:
+    printf "\033[32m Set the preset flag for the service unit\033[0m\n"
+    systemctl preset pyroscope ||:
+    printf "\033[32m Set the enabled flag for the service unit\033[0m\n"
+    systemctl enable pyroscope ||:
+    systemctl restart pyroscope ||:
+}
+
+upgrade() {
+    :
+    # printf "\033[32m Post Install of an upgrade\033[0m\n"
+}
+
+action="$1"
+if  [ "$1" = "configure" ] && [ -z "$2" ]; then
+  # Alpine linux does not pass args, and deb passes $1=configure
+  action="install"
+elif [ "$1" = "configure" ] && [ -n "$2" ]; then
+    # deb passes $1=configure $2=<current version>
+    action="upgrade"
+fi
+
+case "${action}" in
+  "1" | "install")
+    cleanInstall
+    ;;
+  "2" | "upgrade")
+    upgrade
+    ;;
+  *)
+    # $1 == version being installed
+    printf "\033[32m Alpine\033[0m"
+    cleanInstall
+    ;;
+esac

tools/packaging/pyroscope.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=Pyroscope service
+After=network.target
+
+[Service]
+Type=simple
+User=pyroscope
+ExecStart=/usr/bin/pyroscope -config.file /etc/pyroscope/config.yml
+# Give a reasonable amount of time for the server to start up/shut down
+TimeoutSec = 120
+Restart = on-failure
+RestartSec = 2
+
+[Install]
+WantedBy=multi-user.target