From bdfef97dd9b62afc3a59bd412b80cdb9f3e2a791 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jan-Otto=20Kr=C3=B6pke?= Date: Thu, 12 Oct 2023 15:15:29 +0200 Subject: [PATCH] [kube-prometheus-stack] hack: fix etcd mixin (#3880) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * [kube-prometheus-stack] hack: fix etcd mixin Signed-off-by: Jan-Otto Kröpke * [kube-prometheus-stack] hack: fix etcd mixin Signed-off-by: Jan-Otto Kröpke * fix imports Signed-off-by: Jan-Otto Kröpke --------- Signed-off-by: Jan-Otto Kröpke --- charts/kube-prometheus-stack/.gitignore | 1 + charts/kube-prometheus-stack/Chart.yaml | 2 +- .../hack/sync_grafana_dashboards.py | 65 +++++++++++++---- .../hack/sync_prometheus_rules.py | 71 +++++++++++++++---- .../grafana/dashboards-1.14/etcd.yaml | 4 +- .../grafana/dashboards-1.14/nodes-darwin.yaml | 4 +- .../grafana/dashboards-1.14/nodes.yaml | 4 +- .../templates/prometheus/rules-1.14/etcd.yaml | 8 +-- 8 files changed, 123 insertions(+), 36 deletions(-) diff --git a/charts/kube-prometheus-stack/.gitignore b/charts/kube-prometheus-stack/.gitignore index 6f881dd5608c..d4230e6f3f53 100644 --- a/charts/kube-prometheus-stack/.gitignore +++ b/charts/kube-prometheus-stack/.gitignore @@ -6,3 +6,4 @@ charts/* !charts/crds/ !charts/crds/** Chart.lock +hack/*.git diff --git a/charts/kube-prometheus-stack/Chart.yaml b/charts/kube-prometheus-stack/Chart.yaml index d1534da1705d..103e34d9902d 100644 --- a/charts/kube-prometheus-stack/Chart.yaml +++ b/charts/kube-prometheus-stack/Chart.yaml @@ -21,7 +21,7 @@ name: kube-prometheus-stack sources: - https://github.com/prometheus-community/helm-charts - https://github.com/prometheus-operator/kube-prometheus -version: 51.5.3 +version: 51.6.0 appVersion: v0.68.0 kubeVersion: ">=1.19.0-0" home: https://github.com/prometheus-operator/kube-prometheus diff --git a/charts/kube-prometheus-stack/hack/sync_grafana_dashboards.py b/charts/kube-prometheus-stack/hack/sync_grafana_dashboards.py index d191b1ca0a29..f6a3c6020ed9 100755 --- a/charts/kube-prometheus-stack/hack/sync_grafana_dashboards.py +++ b/charts/kube-prometheus-stack/hack/sync_grafana_dashboards.py @@ -1,9 +1,11 @@ #!/usr/bin/env python3 """Fetch dashboards from provided urls into this chart.""" import json +import os import re +import shutil +import subprocess import textwrap -from os import makedirs, path import _jsonnet import requests @@ -35,10 +37,12 @@ def new_representer(dumper, data): 'multicluster_key': '.Values.grafana.sidecar.dashboards.multicluster.global.enabled', }, { - 'source': 'https://raw.githubusercontent.com/etcd-io/etcd/main/contrib/mixin/mixin.libsonnet', + 'git': 'https://github.com/etcd-io/etcd.git', + 'source': 'contrib/mixin/mixin.libsonnet', 'destination': '../templates/grafana/dashboards-1.14', - 'type': 'jsonnet_mixin', 'min_kubernetes': '1.14.0-0', + 'type': 'jsonnet_mixin', + 'mixin_vars': {'_config+': {}}, 'multicluster_key': '(or .Values.grafana.sidecar.dashboards.multicluster.global.enabled .Values.grafana.sidecar.dashboards.multicluster.etcd.enabled)' }, ] @@ -124,6 +128,18 @@ def patch_json_set_timezone_as_variable(content): return re.sub(r'"timezone"\s*:\s*"(?:\\.|[^\"])*"', '"timezone": "`}}{{ .Values.grafana.defaultDashboardsTimezone }}{{`"', content, flags=re.IGNORECASE) +def jsonnet_import_callback(base, rel): + if "github.com" in base: + base = os.getcwd() + '/vendor/' + base[base.find('github.com'):] + elif "github.com" in rel: + base = os.getcwd() + '/vendor/' + + if os.path.isfile(base + rel): + return base + rel, open(base + rel).read().encode('utf-8') + + raise RuntimeError('File not found') + + def write_group_to_file(resource_name, content, url, destination, min_kubernetes, max_kubernetes, multicluster_key): # initialize header lines = header % { @@ -148,7 +164,7 @@ def write_group_to_file(resource_name, content, url, destination, min_kubernetes new_filename = "%s/%s" % (destination, filename) # make sure directories to store the file exist - makedirs(destination, exist_ok=True) + os.makedirs(destination, exist_ok=True) # recreate the file with open(new_filename, 'w') as f: @@ -161,12 +177,33 @@ def main(): init_yaml_styles() # read the rules, create a new template file per group for chart in charts: - print("Generating rules from %s" % chart['source']) - response = requests.get(chart['source']) - if response.status_code != 200: - print('Skipping the file, response code %s not equals 200' % response.status_code) - continue - raw_text = response.text + if 'git' in chart: + print("Clone %s" % chart['git']) + checkout_dir = os.path.basename(chart['git']) + shutil.rmtree(checkout_dir, ignore_errors=True) + subprocess.run(["git", "clone", chart['git'], "--branch", "main", "--single-branch", "--depth", "1", checkout_dir]) + print("Generating rules from %s" % chart['source']) + + mixin_file = os.path.basename(chart['source']) + mixin_dir = checkout_dir + '/' + os.path.dirname(chart['source']) + '/' + if os.path.exists(mixin_dir + "jsonnetfile.json"): + print("Running jsonnet-bundler, because jsonnetfile.json exists") + subprocess.run(["jb", "install"], cwd=mixin_dir) + + mixin_vars = json.dumps(chart['mixin_vars']) + + cwd = os.getcwd() + os.chdir(mixin_dir) + raw_text = '((import "%s") + %s)' % (mixin_file, mixin_vars) + source = mixin_file + else: + print("Generating rules from %s" % chart['source']) + response = requests.get(chart['source']) + if response.status_code != 200: + print('Skipping the file, response code %s not equals 200' % response.status_code) + continue + raw_text = response.text + source = chart['source'] if ('max_kubernetes' not in chart): chart['max_kubernetes']="9.9.9-9" @@ -178,15 +215,19 @@ def main(): for resource, content in group['data'].items(): write_group_to_file(resource.replace('.json', ''), content, chart['source'], chart['destination'], chart['min_kubernetes'], chart['max_kubernetes'], chart['multicluster_key']) elif chart['type'] == 'jsonnet_mixin': - json_text = json.loads(_jsonnet.evaluate_snippet(chart['source'], raw_text + '.grafanaDashboards')) + json_text = json.loads(_jsonnet.evaluate_snippet(source, raw_text + '.grafanaDashboards', import_callback=jsonnet_import_callback)) + + if 'git' in chart: + os.chdir(cwd) # is it already a dashboard structure or is it nested (etcd case)? flat_structure = bool(json_text.get('annotations')) if flat_structure: - resource = path.basename(chart['source']).replace('.json', '') + resource = os.path.basename(chart['source']).replace('.json', '') write_group_to_file(resource, json.dumps(json_text, indent=4), chart['source'], chart['destination'], chart['min_kubernetes'], chart['max_kubernetes'], chart['multicluster_key']) else: for resource, content in json_text.items(): write_group_to_file(resource.replace('.json', ''), json.dumps(content, indent=4), chart['source'], chart['destination'], chart['min_kubernetes'], chart['max_kubernetes'], chart['multicluster_key']) + print("Finished") diff --git a/charts/kube-prometheus-stack/hack/sync_prometheus_rules.py b/charts/kube-prometheus-stack/hack/sync_prometheus_rules.py index f344452763bd..3a1433614e2f 100755 --- a/charts/kube-prometheus-stack/hack/sync_prometheus_rules.py +++ b/charts/kube-prometheus-stack/hack/sync_prometheus_rules.py @@ -1,9 +1,11 @@ #!/usr/bin/env python3 """Fetch alerting and aggregation rules from provided urls into this chart.""" import json +import os import re +import shutil +import subprocess import textwrap -from os import makedirs import _jsonnet import requests @@ -63,10 +65,12 @@ def new_representer(dumper, data): 'min_kubernetes': '1.14.0-0' }, { - 'source': 'https://raw.githubusercontent.com/etcd-io/etcd/main/contrib/mixin/mixin.libsonnet', + 'git': 'https://github.com/etcd-io/etcd.git', + 'source': 'contrib/mixin/mixin.libsonnet', 'destination': '../templates/prometheus/rules-1.14', 'min_kubernetes': '1.14.0-0', - 'is_mixin': True + 'is_mixin': True, + 'mixin_vars': {'_config+': {}} }, ] @@ -392,7 +396,7 @@ def write_group_to_file(group, url, destination, min_kubernetes, max_kubernetes) new_filename = "%s/%s" % (destination, filename) # make sure directories to store the file exist - makedirs(destination, exist_ok=True) + os.makedirs(destination, exist_ok=True) # recreate the file with open(new_filename, 'w') as f: @@ -416,16 +420,45 @@ def main(): init_yaml_styles() # read the rules, create a new template file per group for chart in charts: - print("Generating rules from %s" % chart['source']) - response = requests.get(chart['source']) - if response.status_code != 200: - print('Skipping the file, response code %s not equals 200' % response.status_code) - continue - raw_text = response.text - if chart.get('is_mixin'): - alerts = json.loads(_jsonnet.evaluate_snippet(chart['source'], raw_text + '.prometheusAlerts')) + if 'git' in chart: + print("Clone %s" % chart['git']) + checkout_dir = os.path.basename(chart['git']) + shutil.rmtree(checkout_dir, ignore_errors=True) + subprocess.run(["git", "clone", chart['git'], "--branch", "main", "--single-branch", "--depth", "1", checkout_dir]) + print("Generating rules from %s" % chart['source']) + + if chart.get('is_mixin'): + mixin_file = os.path.basename(chart['source']) + mixin_dir = checkout_dir + '/' + os.path.dirname(chart['source']) + '/' + if os.path.exists(mixin_dir + "jsonnetfile.json"): + print("Running jsonnet-bundler, because jsonnetfile.json exists") + subprocess.run(["jb", "install"], cwd=mixin_dir) + + mixin_vars = json.dumps(chart['mixin_vars']) + + print("Generating rules from %s" % mixin_file) + print("Change cwd to %s" % checkout_dir + '/' + os.path.dirname(chart['source'])) + cwd = os.getcwd() + os.chdir(mixin_dir) + alerts = json.loads(_jsonnet.evaluate_snippet(mixin_file, '((import "%s") + %s).prometheusAlerts' % (mixin_file, mixin_vars), import_callback=jsonnet_import_callback)) + os.chdir(cwd) + else: + with open(checkout_dir + '/' + chart['source'], "r") as f: + raw_text = f.read() + + alerts = yaml.full_load(raw_text) + else: - alerts = yaml.full_load(raw_text) + print("Generating rules from %s" % chart['source']) + response = requests.get(chart['source']) + if response.status_code != 200: + print('Skipping the file, response code %s not equals 200' % response.status_code) + continue + raw_text = response.text + if chart.get('is_mixin'): + alerts = json.loads(_jsonnet.evaluate_snippet(chart['source'], raw_text + '.prometheusAlerts')) + else: + alerts = yaml.full_load(raw_text) if ('max_kubernetes' not in chart): chart['max_kubernetes']="9.9.9-9" @@ -441,5 +474,17 @@ def main(): print("Finished") +def jsonnet_import_callback(base, rel): + if "github.com" in base: + base = os.getcwd() + '/vendor/' + base[base.find('github.com'):] + elif "github.com" in rel: + base = os.getcwd() + '/vendor/' + + if os.path.isfile(base + rel): + return base + rel, open(base + rel).read().encode('utf-8') + + raise RuntimeError('File not found') + + if __name__ == '__main__': main() diff --git a/charts/kube-prometheus-stack/templates/grafana/dashboards-1.14/etcd.yaml b/charts/kube-prometheus-stack/templates/grafana/dashboards-1.14/etcd.yaml index c6961e75f18a..a1691d92cf57 100644 --- a/charts/kube-prometheus-stack/templates/grafana/dashboards-1.14/etcd.yaml +++ b/charts/kube-prometheus-stack/templates/grafana/dashboards-1.14/etcd.yaml @@ -1,5 +1,5 @@ {{- /* -Generated from 'etcd' from https://raw.githubusercontent.com/etcd-io/etcd/main/contrib/mixin/mixin.libsonnet +Generated from 'etcd' from contrib/mixin/mixin.libsonnet Do not change in-place! In order to change this file first read following link: https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack/hack */ -}} @@ -20,5 +20,5 @@ metadata: {{ include "kube-prometheus-stack.labels" $ | indent 4 }} data: etcd.json: |- - {{`{"annotations":{"list":[]},"description":"etcd sample Grafana dashboard with Prometheus","editable":true,"gnetId":null,"hideControls":false,"links":[],"refresh":"10s","rows":[{"collapse":false,"editable":true,"height":"250px","panels":[{"cacheTimeout":null,"colorBackground":false,"colorValue":false,"colors":["rgba(245, 54, 54, 0.9)","rgba(237, 129, 40, 0.89)","rgba(50, 172, 45, 0.97)"],"datasource":"$datasource","editable":true,"error":false,"format":"none","gauge":{"maxValue":100,"minValue":0,"show":false,"thresholdLabels":false,"thresholdMarkers":true},"id":28,"interval":null,"isNew":true,"links":[],"mappingType":1,"mappingTypes":[{"name":"value to text","value":1},{"name":"range to 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In order to change this file first read following link: https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack/hack */ -}} @@ -349,7 +349,7 @@ spec: {{- end }} description: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": database size exceeds the defined quota on etcd instance {{`{{`}} $labels.instance {{`}}`}}, please defrag or increase the quota as the writes to etcd will be disabled when it is full.' summary: etcd cluster database is running full. - expr: (last_over_time(etcd_mvcc_db_total_size_in_bytes[5m]) / last_over_time(etcd_server_quota_backend_bytes[5m]))*100 > 95 + expr: (last_over_time(etcd_mvcc_db_total_size_in_bytes{job=~".*etcd.*"}[5m]) / last_over_time(etcd_server_quota_backend_bytes{job=~".*etcd.*"}[5m]))*100 > 95 for: 10m labels: severity: critical @@ -373,7 +373,7 @@ spec: {{- end }} description: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": Predicting running out of disk space in the next four hours, based on write observations within the past four hours on etcd instance {{`{{`}} $labels.instance {{`}}`}}, please check as it might be disruptive.' summary: etcd cluster database growing very fast. - expr: predict_linear(etcd_mvcc_db_total_size_in_bytes[4h], 4*60*60) > etcd_server_quota_backend_bytes + expr: predict_linear(etcd_mvcc_db_total_size_in_bytes{job=~".*etcd.*"}[4h], 4*60*60) > etcd_server_quota_backend_bytes{job=~".*etcd.*"} for: 10m labels: severity: warning @@ -398,7 +398,7 @@ spec: description: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": database size in use on instance {{`{{`}} $labels.instance {{`}}`}} is {{`{{`}} $value | humanizePercentage {{`}}`}} of the actual allocated disk space, please run defragmentation (e.g. etcdctl defrag) to retrieve the unused fragmented disk space.' runbook_url: https://etcd.io/docs/v3.5/op-guide/maintenance/#defragmentation summary: etcd database size in use is less than 50% of the actual allocated storage. - expr: (last_over_time(etcd_mvcc_db_total_size_in_use_in_bytes[5m]) / last_over_time(etcd_mvcc_db_total_size_in_bytes[5m])) < 0.5 and etcd_mvcc_db_total_size_in_use_in_bytes > 104857600 + expr: (last_over_time(etcd_mvcc_db_total_size_in_use_in_bytes{job=~".*etcd.*"}[5m]) / last_over_time(etcd_mvcc_db_total_size_in_bytes{job=~".*etcd.*"}[5m])) < 0.5 and etcd_mvcc_db_total_size_in_use_in_bytes{job=~".*etcd.*"} > 104857600 for: 10m labels: severity: warning