Release v0.6.0

* [CHANGE] Remove broken metrics collection #68
* [CHANGE] Remove use of cgroups #105
* [FEATURE] Add unit timestamp metrics #58

Build updates:
* Simplify build with CircleCI orb.
* Upgrade to Go 1.21.
* Switch form codespell to misspell linter.
* Enable revive linter.
* Removed unused func param.
* Remove unnecessary promu build flags.
* Move errcheck excludes inline.

Signed-off-by: SuperQ <[email protected]>

.circleci/config.yml

@@ -9,7 +9,7 @@ executors:
   # also be updated.
   golang:
     docker:
-      - image: cimg/go:1.20
+      - image: cimg/go:1.21
 
 jobs:
   test:
@@ -21,46 +21,6 @@ jobs:
       - prometheus/store_artifact:
           file: systemd_exporter
 
-  codespell:
-    docker:
-      - image: cimg/python:3.11
-
-    steps:
-      - checkout
-      - run: pip install codespell
-      - run: codespell --skip=".git,./vendor,ttar,go.mod,go.sum,*pem" -L uint,packages\',uptodate
-
-  build:
-    machine:
-      image: ubuntu-2204:current
-
-    environment:
-      DOCKER_TEST_IMAGE_NAME: quay.io/prometheus/golang-builder:1.18-base
-      REPO_PATH: github.com/prometheus-community/systemd_exporter
-
-    steps:
-      - checkout
-      - run: docker run --privileged linuxkit/binfmt:v0.8
-      - run: make promu
-      - run: promu crossbuild
-      - run: promu --config .promu.yml crossbuild
-      - persist_to_workspace:
-          root: .
-          paths:
-            - .build
-      - store_artifacts:
-          path: .build
-          destination: /build
-      - run:
-          command: |
-            if [ -n "$CIRCLE_TAG" ]; then
-              make docker DOCKER_IMAGE_TAG=$CIRCLE_TAG
-            else
-              make docker
-            fi
-      - run: docker images
-      - run: docker run --rm -t -v "$(pwd):/app" "${DOCKER_TEST_IMAGE_NAME}" -i "${REPO_PATH}" -T
-
 workflows:
   version: 2
   systemd_exporter:
@@ -73,7 +33,8 @@ workflows:
           filters:
             tags:
               only: /.*/
-      - codespell:
+      - prometheus/build:
+          name: build
           filters:
             tags:
               only: /.*/

.golangci.yml

@@ -1,4 +1,9 @@
 ---
+linters:
+  enable:
+    - misspell
+    - revive
+
 issues:
   exclude-rules:
     - path: _test.go
@@ -7,4 +12,8 @@ issues:
 
 linters-settings:
   errcheck:
-    exclude: scripts/errcheck_excludes.txt
+    exclude-functions:
+      # Used in HTTP handlers, any error is handled by the server itself.
+      - (net/http.ResponseWriter).Write
+      # Never check for logger errors.
+      - (github.com/go-kit/log.Logger).Log

.promu.yml

@@ -1,13 +1,12 @@
 go:
     # Whenever the Go version is updated here, .travis.yml and
     # .circle/config.yml should also be updated.
-    version: 1.20
+    version: 1.21
 repository:
     path: github.com/prometheus-community/systemd_exporter
 build:
     binaries:
         - name: systemd_exporter
-    flags: -a -tags 'netgo static_build'
     ldflags: |
         -X github.com/prometheus/common/version.Version={{.Version}}
         -X github.com/prometheus/common/version.Revision={{.Revision}}

CHANGELOG.md

@@ -1,5 +1,11 @@
 ## main / unreleased
 
+## 0.6.0 / 2023-10-30
+
+* [CHANGE] Remove broken metrics collection #68
+* [CHANGE] Remove use of cgroups #105
+* [FEATURE] Add unit timestamp metrics #58
+
 ## 0.5.0 / 2022-07-20
 
 Now released under the Prometheus Community

VERSION

@@ -1 +1 @@
-0.5.0
+0.6.0

examples/kubernetes/daemonset.yaml

@@ -31,8 +31,7 @@ spec:
           privileged: true
         args:
         - --log.level=info
-        - --path.procfs=/host/proc
-        - --collector.unit-whitelist=kubelet.service|docker.service
+        - --collector.unit-include=kubelet.service|docker.service
         ports:
         - name: metrics
           containerPort: 9558

systemd/systemd.go

@@ -289,7 +289,7 @@ func (c *Collector) collectUnit(conn *dbus.Conn, ch chan<- prometheus.Metric, un
 	logger := log.With(c.logger, "unit", unit.Name)
 
 	// Collect unit_state for all
-	err := c.collectUnitState(conn, ch, unit)
+	err := c.collectUnitState(ch, unit)
 	if err != nil {
 		level.Warn(logger).Log("msg", errUnitMetricsMsg, "err", err)
 		// TODO should we continue processing here?
@@ -352,7 +352,7 @@ func (c *Collector) collectUnit(conn *dbus.Conn, ch chan<- prometheus.Metric, un
 	return nil
 }
 
-func (c *Collector) collectUnitState(conn *dbus.Conn, ch chan<- prometheus.Metric, unit dbus.UnitStatus) error {
+func (c *Collector) collectUnitState(ch chan<- prometheus.Metric, unit dbus.UnitStatus) error {
 	// TODO: wrap GetUnitTypePropertyString(
 	// serviceTypeProperty, err := conn.GetUnitTypeProperty(unit.Name, "Timer", "NextElapseUSecMonotonic")