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Consul Terransible

This reposiory will help you setup Consul Cluster (2 clients and 3 Servers) using Terraform and Ansible.

Diagrams - Infra

consul-infra.png

How to setup Consul Cluster using Terrform and Ansible Scripts

Preparing master machine

Please refer to file - client-setup-script.sh

chmod 777 client-setup-script.sh
./client-setup-script.sh

Screenshots

images/consul-01.PNG images/consul-02.PNG images/consul-03.PNG images/consul-05.PNG

Initialise and Plan

git clone https://github.com/dhavlev/consul-terransible.git
cd consul-terransible/terraform
terraform init
terraform plan

Apply

terraform apply --auto-approve

Destroy

terraform destroy --auto-approve

How to Execute Ansible Playbook independent of Terraform

Setup

ansible-playbook -i non-production master-install-consul.yaml --tags "setup"

Maintenance

ansible-playbook -i non-production master-install-consul.yaml --tags "consul-start" | "consul-stop" | "consul-status"

Troubleshoot

Ansible

  1. ansible the authenticity of host can't be established
    Open /etc/ansible/ansible.cfg and set 'host_key_checking' to false
  2. Problem while identing the config.json
    refer to link

Important Note

  1. This infrastructure is deployed from a controller machine which is outside the Consul Infra and does not have access to private IPs.
  2. You will see Public IPs are enabled though Instances are deployed in Private Subnet.
  3. Please amend scripts to suit your requirements.

Want to Secure Infra

  1. Remove route to internet from route - "consul_rt_private"
  2. Remove "map_public_ip_on_launch" from "consul_sub_private_a", consul_sub_private_b", "consul_sub_private_c"
  3. Map private ips in ansible inventoty "aws_hosts"