Documentation

You can use this repo to install and configure Consul, HAProxy, Redis, Dynomite and other stuff at several hosts.

Starting

git clone [email protected]:pashinin-com/provision.git
cd provision
make  # installs ansible

Note 1: remove -i hosts to use your default /etc/ansible/hosts inventry file.

Note 2: remove --check to actually do the stuff.

Note 3: add --tags "consul" to run only tasks marked by "consul" tag.

Consul

Consul agent may run in one of two modes: client or server. There should be 3-5 servers in a datacenter and agents running on all other nodes (server is an agent too).

Downloads Consul and consul-template, installs it under /usr/local/bin/, creates systemd scripts for consul and consul-template, starts both.

# Install Consul Agent on all "consul" hosts (defined in inventory)
ansible-playbook consul.yml -i hosts --check

# Install Consul Agent at one host only
ansible-playbook consul.yml -i hosts --limit '10.254.239.4' --check

# Install Consul Server at 1 hosts (use max 3-5 servers in 1 DC)
ansible-playbook consul.yml -i hosts --limit '10.254.239.2' --extra-vars "mode=server" --check

# Install Consul Server at 3 hosts (use max 3-5 servers in 1 DC)
ansible-playbook consul.yml -i hosts --limit '10.254.239.1,10.254.239.2,10.254.239.3' --extra-vars "mode=server" --check

# Check Consul (will list alive and failed nodes)
consul members

Vault

# Install Vault only at one host
ansible-playbook vault.yml -i hosts --limit '10.254.239.2' --check

Nomad

Nomad can run as client, server and both (client+server).

# Clients (all nodes)
ansible-playbook nomad.yml -i hosts --limit '10.254.239.4' --check

# Servers (3-5)
ansible-playbook nomad.yml -i hosts --limit '10.254.239.2' --extra-vars "mode=server" --check

# Client and server (if you need)
ansible-playbook nomad.yml -i hosts --limit '10.254.239.1,10.254.239.2,10.254.239.3' --extra-vars "mode=both" --check

PostgreSQL

Installs PostgreSQL 10 on Debian or Ubuntu.

# Install PostgreSQL only at one host
ansible-playbook postgresql.yml -i hosts --limit '10.254.239.2' -f 10 --check

Stolon

Downloads v0.10.0, extracts under /tmp/stolon/, copies bin files stolonctl, stolon-proxy, stolon-keeper, stolon-sentinel under /usr/local/bin/, installs systemd scripts for proxy, keeper and sentinel and runs them.

# Install
ansible-playbook stolon.yml -i hosts --limit '10.254.239.2' --check

Tarantool

# Install
ansible-playbook tarantool.yml -i hosts -f 10 --check
ansible-playbook tarantool.yml -i hosts --limit '10.254.239.2' -f 10 --check

Openresty

Nginx + Lua + some stuff

# Install
ansible-playbook openresty.yml -i hosts --limit '10.254.239.2' -f 10 --check

Dynomite

Note: I could install v0.6 in Ubuntu 16.04, but not in Debian 9. Dynomite has an unsolved problem with OpenSSL 1.1.x branch.

Clones Dynomite git repo in /usr/src/dynomite, compiles, installs under /usr/bin/dynomite, creates systemd scripts.

Listens on port 8102 on all addresses, connect to Redis running at 127.0.0.1:6379.

# Install Dynomite at all "dynomite" hosts (defined in inventory)

# Install Dynomite only at one host
ansible-playbook dynomite.yml -i hosts --limit '10.254.239.2' --check

# Test - terminal 1
redis-cli -h 10.254.239.2 -p 8102
# > SET test 123
Terminal 2: Access redis on server B
$ redis-cli -h 1.0.0.2 -p 8380
$ > GET test
# You should see output result: 123

Examples

# example-my-desktop.yml - my Desktop (Debian 9)
ansible-playbook example-my-desktop.yml -i hosts