Category: Software development

Reading Time: < 1 minuteKeytool

The Most Common Java Keytool Keystore Commands

import

• keytool -import -trustcacerts -alias root -file Thawte.crt -keystore keystore.jks (or cacerts)
  
  (keytool -keystore $CACERTS_STORE -storepass changeit -importcert -alias jfrog.root -file jfrog.root.cer -noprompt)
  
  

list

• keytool -list -v -keystore $JAVA_HOME/jre/lib/security/cacerts

create

mulesoft

keytool -genkey -keyalg RSA -alias <key-alias> -keystore <keystore-name>.jks

sslshopper
keytool -genkey -keyalg RSA -alias mydomain -keystore keystore.jks  -keysize 2048

Install Spring STS on Mac

Drag the STS to the Application may not necessary, as it could not find the vFabric server (need to open the folder to let base_instance know)

Other setup for Maven (3.0.5)
home brew maven30 (stackoverflow thread)

Last but not least

Java dev blogs at Okta

(Update 12-10-2020) Ran the DataFusionQuickstart from Data Fusion Hub. Need to make sure the compute@developer service account have the following roles:

BigQuery Admin
Cloud Data Fusion Runner
Dataproc Worker
Service Account User
Storage Admin

then the datafusion user service account still has “Service Account User” role (this is same as below). The big query and storage roles are needed because the pipeline uses both. When it runs successfully, at the end we will see “Pipeline ‘DataFusionQuickstart’ succeeded.”

(Original 10-26-2020) Tried running couple more pre-set pipelines from google. It took a while to run (don’t know why). More on permissions (IAMs): need to add “Dataproc Worker” role to “Compute Engine default service account”. Continue added Service Account User to “Cloud Data Fusion Service Account / Cloud Data Fusion API Service Agent”

Couple tutorials

Targeting campaign pipeline

Creating a reusable pipeline

Permission issue (note the exact error will depends on the setup of network as well, for example, this DF service account needs to have network access to run the pipeline, and it needs that role if applicable).

Cost: the developer edition for data fusion instance costs 35 cents per hour. The basic edition is 1.80 per hour but comes with first 120 hours free, this is 5 days free usage and recommended. Also, there is ways in GCP to set up budgets and alerts.

(Update 12-16-2023)

On AWS a competing technology is cloudformation. The nice thing about TerraForm is it supports multi-cloud (AWS, Azure and GCP, and more).

(Original 2020)

Doing

Prepare for Certification

Get Started – AWS : below has some issues, cannot find the image. Note I tried to find correct ami image id too (ami-032930428bf1abbff, via AWS console), but it appears there is another issue when a correct ami image id was used.

resource "aws_instance" "example" {
  ami           = "ami-830c94e3"
  instance_type = "t2.micro"
}

Error: Error launching source instance: VPCResourceNotSpecified: The specified instance type can only be used in a VPC. A subnet ID or network interface ID is required to carry out the request.
	status code: 400, request id: c8d85874-93fb-4e48-b515-97b50172826b

  on example.tf line 15, in resource "aws_instance" "example":
  15: resource "aws_instance" "example" {

*Amazon Linux AMI 2018.03.0 (HVM), SSD Volume Type – ami-032930428bf1abbff (from aws console)

Done

Get Started – Google Cloud

Get Started – Azure : one interesting part is it seems the user name and password for Azure in TF script is not checked (or in other words they are stateless?). Not sure why. Was using admin_username=plankton later while it was setup it was Password1234!

Two more comments on Azure: the Store Remote State part did not work perfectly. I believe Azure free tier has one year limit: it shows 6 cents so far for my infrastructure experiment. Also: the detailed cost.

Get Started – Terraform Cloud