jiang-wei

#!/usr/bin/env python3

#############
# save to ~/bin/decode-secret-yaml
# chmod +x ~/bin/decode-secret-yaml
#
# usage:
# ~/bin/decode-secret-yaml foo.yaml
# kubectl get secret foo  -o yaml | ~/bin/decode-secret-yaml
#################

jiang-wei

#!/usr/bin/env python

#
# save to $PATH as "jslog"
# and use as:
# kubectl logs xxx | jslog
#


import sys

jiang-wei

# cat prometheus.yaml 
"alerting": 
  "alertmanagers": 
  - "kubernetes_sd_configs":   # discovery of alert manager from EP in namespace monitoring
    - "namespaces": 
        "names": 
        - "monitoring"
      "role": "endpoints"
    "path_prefix": "/"
    "relabel_configs": 

jiang-wei

$ cat alerts.yaml 
"groups": 
- "name": "kubernetes-absent"
  "rules": 
  - "alert": "AlertmanagerDown"
    "annotations": 
      "message": "Alertmanager has disappeared from Prometheus target discovery."
      "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-alertmanagerdown"
    "expr": |
      absent(up{job="alertmanager"} == 1)

jiang-wei

这是从 GKE market place 里安装的Prometheus server 的 rules 配置
当做 rules 样例学习

$ cat rules.yaml                                            
"groups": 
- "name": "k8s.rules"
  "rules": 
  - "expr": |
      sum(rate(container_cpu_usage_seconds_total{job="cadvisor", image!=""}[5m])) by (namespace)
    "record": "namespace:container_cpu_usage_seconds_total:sum_rate"

jiang-wei

Keybase proof

I hereby claim:

• I am jiang-wei on github.
• I am wei_jiang (https://keybase.io/wei_jiang) on keybase.
• I have a public key ASDqhgP4u5dw0bBrDACNgK9079KhOj7WTWN0eR3sf4Fw4go

To claim this, I am signing this object:

jiang-wei

Don't use the API as described in http://docs.grafana.org/http_api/dashboard/

Use the undocumented `import` interface
* remove .dashboard.id
-----------------------
data = getDashboard(DA_API_URL, uid, daAuthHeader)

def createDashboard(apiUrl, uid, authHeader, data):
    del data['meta']
    data['overwrite'] = True

jiang-wei

containers:
  - name: main
    image: gcr.io/some/image:latest
    command: ["/bin/bash", "-c"]
    args:
      - |
        trap "touch /tmp/pod/main-terminated" EXIT
        /my-batch-job/bin/main --config=/config/my-job-config.yaml
    volumeMounts:
      - mountPath: /tmp/pod

jiang-wei

{
  "id": "f0310b9c-3ed2-4b43-88f2-cf7fa1f6867a",
  "name": "open google.ca",
  "url": "https://www.google.ca",
  "tests": [{
    "id": "e9662b73-483b-4db9-9b84-b9a9652145b2",
    "name": "Untitled",
    "commands": [{
      "id": "a2fffec4-2464-4d1b-a767-595da262e200",
      "comment": "",

jiang-wei

const {Builder, By, until} = require('selenium-webdriver');

let driver = new Builder()
    .forBrowser('firefox')
    .build();

driver.get('http://www.google.com/ncr');
driver.findElement(By.name('q')).sendKeys('webdriver');
driver.findElement(By.name('btnK')).click();
driver.wait(until.titleIs('webdriver - Google Search'), 1000);