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metallica127 / Makefile
Created Oct 17, 2019
Makefile list targets by default
View Makefile
PHONY: list
@$(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | sort | egrep -v -e '^[^ [:alnum:]]' -e '^$@$$'
metallica127 /
Created Oct 12, 2019
Check environment variable in bash
: ${SUB_ZERO:?"Need to set SUB_ZERO non-empty"}
metallica127 /
Last active Sep 29, 2019
Install Helm on Openshift
#!/usr/bin/env bash
set -euo pipefail
: ${HELM_VERSION:?"Need to set HELM_VERSION non-empty"}
: "${TILLER_NAMESPACE:=tiller}"
oc new-project ${TILLER_NAMESPACE}
metallica127 / jenkins_scritpted_cron_trigger.groovy
Created Sep 24, 2019
Jenkins scripted pipeline: cron trigger
View jenkins_scritpted_cron_trigger.groovy
node {
properties ([pipelineTriggers([cron('0 0 * * *')])])
stage('Clone repositories') {
sh 'echo test'
metallica127 / parse_json_yaml_to_map.go
Created Sep 14, 2019
GoLang: Parse json yaml to map[string]interface{}
View parse_json_yaml_to_map.go
func main() {
jsonStr := `{"isSchemaConforming":true,"schemaVersion":0,"unknown.0":[{"email_address":""},{"email_address":""}]}`
dynamic := make(map[string]interface{})
json.Unmarshal([]byte(jsonStr), &dynamic)
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
metallica127 /
Created Jul 13, 2019
Makefile check if variable is defined

Check if variable is defined in a Makefile

Using ifndef

ifndef MY_FLAG
$(error MY_FLAG is not set)
metallica127 /
Created Jan 24, 2019
Vault error x509: certificate signed by unknown authority
$ vault status
Error checking seal status: Get x509: certificate signed by unknown authority


metallica127 /
Created Jan 18, 2019
Inspect struct object golang

To inspect the strcut you can use the %+v interpolation:

fmt.Println(fmt.Sprintf("%+v", myStruct))

The kubelet in Openshift is run using hyperkube.
It is evaluated as a systemd service called origin-node.

  • To view the logs you can use:
$ journalctl -u origin-node
  • To check the status simply run:
You can’t perform that action at this time.