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@metallica127
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'
}
}
View DOCKER_OVERLAY.md

Network

We need a global docker network in order to communicate between docker-compose setups on different hosts

Step 1: Install and run Consul (as a key-value storage for docker)

https://www.consul.io/intro/getting-started/install.html

Step 2: Edit docker configuration (on each docker host)

@metallica127
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":"test1@uber.com"},{"email_address":"test2@uber.com"}]}`
dynamic := make(map[string]interface{})
json.Unmarshal([]byte(jsonStr), &dynamic)
}
View backup_with_lock.sh
#!/usr/bin/env bash
CONSUL_ADDR="${CONSUL_ADDR:-http://127.0.0.1:8500}"
function create_session(){
local session_id=$(curl -s -XPUT "${CONSUL_ADDR}/v1/session/create" \
-d "{\"Name\": \"backup\"}" | jq -r '.ID' )
echo ${session_id}
}
View source_script_directory.md
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
@metallica127
metallica127 / make_variable_check.md
Created Jul 13, 2019
Makefile check if variable is defined
View make_variable_check.md

Check if variable is defined in a Makefile

Using ifndef

ifndef MY_FLAG
$(error MY_FLAG is not set)
endif
@metallica127
metallica127 / vault_certificate_error.md
Created Jan 24, 2019
Vault error x509: certificate signed by unknown authority
View vault_certificate_error.md
$ vault status
Error checking seal status: Get https://172.16.4.117:8200/v1/sys/seal-status: x509: certificate signed by unknown authority

Solution:

View openshift_kubelet_logs.md

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:
@metallica127
metallica127 / golang_inspect_strcut.md
Created Jan 18, 2019
Inspect struct object golang
View golang_inspect_strcut.md

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

fmt.Println(fmt.Sprintf("%+v", myStruct))
@metallica127
metallica127 / install_consul_linux.md
Last active Jan 13, 2019
Intall Consul on Linux [Ubuntu, Debian, CentOS]
View install_consul_linux.md

Install consul on Linux

This snippet will help you to easily install consul on linux! Simply run the following:

curl -s -L https://git.io/fxJJR | sudo bash -s

The install_consul_linux.sh will be downloaded and evaluated.

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