Silently install Java on Ubuntu

	#!/usr/bin/env bash
	apt-get install python-software-properties
	add-apt-repository -y ppa:webupd8team/java
	apt-get update
	# Enable silent install
	echo debconf shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections
	echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-set-selections
	apt-get install -y oracle-java8-installer

view raw bootstrap-java.sh hosted with ❤ by GitHub

How to setup GKE?

I'm usually manage google cloud command in Postman.
Follow next orders.

1. Create own network.

   curl -X POST -H "Content-Type: application/json" -H "Authorization: {{Your Access Token}}" -H "Cache-Control: no-cache" -d '{
     "name": "{{Your Network Name}}",
     "description": "{{Your Network Description}}",
     "autoCreateSubnetworks": false
   }' "https://www.googleapis.com/compute/v1/projects/{{Your Project ID}}/global/networks"

2. Create subnetwork.

   curl -X POST -H "Content-Type: application/json" -H "Authorization: {{Your Access Token}}" -H "Cache-Control: no-cache" -d '{
     "ipCidrRange": "10.10.0.0/20",
     "name": "asia-east1",
     "network": "https://www.googleapis.com/compute/v1/projects/{{Your Project ID}}/global/networks/{{Your Network Name}}"
   }' "https://www.googleapis.com/compute/v1/projects/{{Your Project ID}}/regions/asia-east1/subnetworks"

3. Create cluster in GKE.

   curl -X POST -H "Content-Type: application/json" -H "Authorization: {{Your Access Token}}" -H "Cache-Control: no-cache" -H "Postman-Token: bc7eddb2-be25-29f6-9af4-be948e1519b6" -d '{
     "cluster": {
       "name": "{{Your Cluster Name}}",
       "zone": "asia-east1-a",
       "network": "{{Your Network Name}},
       "loggingService": "logging.googleapis.com",
       "monitoringService": "none",
       "description": "{{Your Cluster Description}}",
       "subnetwork": "asia-east1",
       "nodePools": [
         {
           "initialNodeCount": 1,
           "config": {
             "machineType": "n1-standard-2",
             "imageType": "GCI",
             "diskSizeGb": 100,
             "localSsdCount": 1,
             "oauthScopes": [
               "https://www.googleapis.com/auth/compute",
               "https://www.googleapis.com/auth/devstorage.read_write",
               "https://www.googleapis.com/auth/bigquery",
               "https://www.googleapis.com/auth/sqlservice.admin",
               "https://www.googleapis.com/auth/datastore",
               "https://www.googleapis.com/auth/logging.write",
               "https://www.googleapis.com/auth/monitoring.write",
               "https://www.googleapis.com/auth/bigtable.data",
               "https://www.googleapis.com/auth/servicecontrol",
               "https://www.googleapis.com/auth/service.management.readonly",
               "https://www.googleapis.com/auth/trace.append"
             ]
           },
           "autoscaling": {
             "enabled": false
           },
           "management": {
             "autoUpgrade": false,
             "autoRepair": false,
             "upgradeOptions": {}
           },
           "name": "{{Your Pool Name}}"
         }
       ],
       "masterAuth": {
         "username": "admin"
       }
     }
   }' "https://container.googleapis.com/v1/projects/{{Your Project ID}}/zones/asia-east1-a/clusters"

4. Get credential of cluster.

   gcloud container clusters list

   gcloud config set container/cluster {{Your Cluster Name}}

   gcloud config set compute/zone {{Your Zone ID}}

   echo "export GOOGLE_APPLICATION_CREDENTIALS={{Your Key File Address}}" >> ~/.bash_profile

   gcloud container clusters get-credentials {{Your Cluster Name}}

mysql data directory error on kubernetes.

If you meet next error...

[ERROR] --initialize specified but the data directory has files in it. Aborting.

You should add next argument in recipe.

spec:
  containers:
  - name: db-mysql
    image: mysql:5.7
    args: ["--ignore-db-dir=lost+found"]

Private docker registry on kubernete recipe

Encrypt docker config to base64.

cat ~/.docker/config.json | base64

Add encrypted data to data element.

apiVersion: v1
kind: Secret
metadata:
  name: docker-config
type: kubernetes.io/dockerconfigjson
data:
  .dockerconfigjson: ewoJI...

Refer docker-config as same level with container in deployment.

imagePullSecrets:
  - name: docker-config

Can't see console log of react native in nuclide.

Go to nuclide setting and change value of "Tag to include" to "^(.*)$" like this.

ref. https://github.com/facebook/nuclide/issues/899

Connect to localhost inside docker

If your service inside docker want to connect to localhost, you can attach next option.

docker run --net="host"