brightzheng100

To cat all files within specified files and folders

$ tail -n +1 file1 folder1/* folder2/*
==> file <==
<content of file>

==> folder1/file1 <==
<content of folder/file1>

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Setting up gradle debug configuration for all projects

$ touch ~/.gradle/init.gradle
$ cat > ~/.gradle/init.gradle <<EOF
allprojects {
    tasks.withType(Test) {
        if (System.getProperty('DEBUG', 'false') == 'true') {
            jvmArgs '-Xdebug',
 '-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=9009'

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Issue / Problem Statement

If we bosh scp directly to folders under /var/vcap/jobs/xxx/config, you will encounter Permission denied like:

$ bosh -e lite -d concourse4 scp concourse.yml web:/var/vcap/jobs/uaa/config/

Using environment '192.168.50.6' as client 'admin'

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Git Practices

Add Upstream Remote to Our Forked Git Repos

Assuming we have forked the repo.

Now we clone our forked repo:

$ git clone git@github.com:YOUR-USERNAME/THE-REPO.git

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Please refer to here for how to generate internal CA.

Generate Key and CSR

$ openssl genrsa -out private/example.key.pem 2048

$ cat > cnf/example.cnf <<EOF
[ req ]

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Create your CA database to keep track of signed certificates

$ mkdir private certs cnf csr crl
$ touch index.txt
$ echo 1000 > serial

Create Your OpenSSL Config File

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How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

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#!/bin/bash

# Dependencies: cf, jq >= 1.5

set -euo pipefail
umask 0077

PROPERTIES_TO_SHOW_H=("#" guid name last_operation last_operation_at service_name organization space)
PROPERTIES_TO_SHOW=(.metadata.guid .entity.name .entity.last_operation.state .entity.last_operation.updated_at .extra.service_name .extra.organization .extra.space)

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#!/bin/bash

ORIGINAL_TARGET_ORG=`cf target | awk '/org:/{ print $2 }'`
ORIGINAL_TARGET_SPACE=`cf target | awk '/space:/{ print $2 }'`

ALL_ORGS=(`cf orgs | awk 'NR > 3'`)

# flag for printing the header
PRINT_HEADER=0

brightzheng100

Mon Mar 27 08:34:47 UTC 2017