kawsark

Project Tech Stack Configuration

AWS Configuration

• Region: us-west-2
• AWS Account #: 1234576890
• CLI Profile: dev (use a named profile instead of default for better security)

Infrastructure as Code

• Framework: AWS CDK (Python)
• Alternative: Terraform can be used instead of CDK

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#!/bin/bash

# The command to run. Use operation=$1 to pass it in as a parameter.
OPERATION='kasa --type plug --alias "basement-fan" on'

# Threshold for maximum humidity
th=65
# Threshold for minimum temperature
tt=60

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### Configure variables
These variables will be used for this snippet. Please substitute accordingly.
```bash
export RootCAName="root_ca"
export InterCAName="inter_ca"
export CommonName="hashidemos.io"
export InterCommonName="inter.hashidemos.io"
export Root_CA_ttl="730h"
export Inter_CA_ttl="350h"
export Cert_ttl="8h"

kawsark

#!/bin/bash

# Set variables
export PATH="$${PATH}:/usr/local/bin"
export local_ip="$(curl -s -H "Metadata-Flavor: Google" http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0/ip)"

consul_version="1.7.2"
consul_url="https://releases.hashicorp.com/consul/${consul_version}/consul_${consul_version}_linux_amd64.zip"

curl "${consul_url}" -o consul.zip

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Example Jenkins integration for Vault

This snippet provides an example Jenkinsfile that performs an AppRole authentication using curl utility. The objective is to allow Jenkins to Authenticate to Vault, then use a temporary token to retrieve a secret. It does not rely on a plugin and therefore offers more flexibility.

AppRole authentication relies on a ROLE_ID and SECRET_ID to login and retrieve a Vault token. There are two ways to provide the SECRET_ID to Jenkins. Both of these are expanded upon below.

1. Pre-created SECRET_ID as a Jenkins secret. An out-of-band workflow will need to refresh the SECRET_ID periodically so Jenkins continues to perform AppRole logins successfully.
2. Alternative AppRole design: Give Jenkins the ability to refresh the SECRET_ID by itself.

1. Pre-created Secret ID

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# 1. (Optional) Disable SSH and Key/Value secrets engine if they existed.
# NOTE: THIS WILL ERASE PREVIOUSLY CONFIGURED ENGINES AT THIS PATH
export VAULT_TOKEN=<Admin-or-Root-key>
vault secrets disable ssh
vault secrets disable kv

# 2. Enable SSH secrets engine (Client signer role) and generate a CA
vault secrets enable -path=ssh ssh
vault write -format=json ssh/config/ca generate_signing_key=true | jq -r '.data.public_key' > ./trusted-user-ca-keys.pem

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#!/bin/bash
echo "~~~~~~~ Application wrapper invoked, starting loop"
i=0
while [ "$i" -lt 100 ]
do
  echo "Loop # $i"
  echo "Checking for GOOGLE_APPLICATION_CREDENTIALS"
  echo $GOOGLE_APPLICATION_CREDENTIALS
#  echo "Checking for GCP_KEY_VIEWER_PRIVATE_KEY_DATA"
#  echo $GCP_KEY_VIEWER_PRIVATE_KEY_DATA

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➜  envconsul envconsul -config testgcp1.hcl
2019/12/06 16:01:41 [DEBUG] (logging) enabling syslog on LOCAL5
2019/12/06 21:01:41.417692 [INFO] envconsul v0.9.1 (b5e928a7)
2019/12/06 21:01:41.417753 [INFO] (runner) creating new runner (once: false)
2019/12/06 21:01:41.418195 [DEBUG] (runner) final config: {"Consul":{"Address":"","Auth":{"Enabled":false,"Username":"","Password":""},"Retry":{"Attempts":12,"Backoff":250000000,"MaxBackoff":60000000000,"Enabled":true},"SSL":{"CaCert":"","CaPath":"","Cert":"","Enabled":false,"Key":"","ServerName":"","Verify":true},"Token":"","Transport":{"DialKeepAlive":30000000000,"DialTimeout":30000000000,"DisableKeepAlives":false,"IdleConnTimeout":90000000000,"MaxIdleConns":100,"MaxIdleConnsPerHost":9,"TLSHandshakeTimeout":10000000000}},"Exec":{"Command":"/Users/kawsark/code/local/envconsul/app-wrapper.sh","Enabled":true,"Env":{"Blacklist":[],"Custom":[],"Pristine":false,"Whitelist":[]},"KillSignal":2,"KillTimeout":30000000000,"ReloadSignal":null,"Splay":5000000000,"Timeout":0},"K

kawsark

import os
import hvac
import json
import socket
import time

vault_role_id = os.environ['ROLE_ID']
secrets_path = os.environ['SECRETS_PATH']

print("***********************")