Update README
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README.md
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README.md
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@ -4,7 +4,7 @@
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This document describes how to use ansible-base to deploy basic infrastructures.
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The main parts of this document are :
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The main parts of this document are:
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* Ansible "server" (or local machine) preparation
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* Nodes preparation
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@ -14,25 +14,28 @@ The main parts of this document are :
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Update and install Ansible and GIT on your system.
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Clone this repo (ssh pubkey needs to be authorized for this repo) and go into the cloned directory :
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Clone this repo (ssh pubkey needs to be authorized for this repo) and go into the cloned directory:
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```bash
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git clone https://git.grifon.fr/nemo/ansible-base.git
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cd ansible-core
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```
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Download roles dependecies (currenty not used) :
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Download roles dependecies (currenty not used):
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```ansible-galaxy install -r requirements.yml -p ./roles/```
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Copy the template inventory and edit the new file to add your node(s) in the corresponding `function` section and `os` section :
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Copy the template inventory folder and edit all subfiles to add your node(s) and other informations:
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```bash
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cp inventory_template.yml inventory_yourInventoryName.yml
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vi inventory_yourInventoryName.yml
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cp -R inventory_template inventory_yourInventoryName
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```
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Example with template values :
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> Note: you can create a dedicated private GIT repository to manage your inventory.
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The main inventory file is: `inventory_yourInventoryName/inventory.yml`
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Example with template values:
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```bash
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all:
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@ -68,32 +71,31 @@ all:
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...
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```
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> Note : the node's name needs to be reachable, you can use IP address or FQDN (recommended).
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> WARNING : if you don't want to publish your inventory in the SCM system, add the filename in your .gitignore file (if you're using GIT).
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> Note: the node's name needs to be reachable, you can use IP address or FQDN (recommended).
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Create a vault file for all nodes using the vault template file and define all values :
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Create a vault file for all nodes using the vault template file and define all values:
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```bash
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cp group_vars/all/vault.yml.template group_vars/all/vault.yml
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vim group_vars/all/vault.yml
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cp inventory_yourInventoryName/group_vars/vault.yml.template inventory_yourInventoryName/group_vars/vault.yml
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vim inventory_yourInventoryName/group_vars/vault.yml
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```
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Encrypt the vault file and check if edit function works. A prompt will ask you a password :
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Encrypt the vault file and check if edit function works. A prompt will ask you a password:
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```bash
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ansible-vault encrypt group_vars/all/vault.yml
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ansible-vault edit group_vars/all/vault.yml
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ansible-vault encrypt inventory_yourInventoryName/group_vars/vault.yml
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ansible-vault edit inventory_yourInventoryName/group_vars/vault.yml
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```
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> Note : if you version your code, don't forget to exclude this vault file of versionning (with .`gitignore file` if you are using GIT).
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> Note: if you version your code, don't forget to exclude this vault file of versionning (with .`gitignore file` if you are using GIT).
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According to your needs, you can edit all variables in `group_vars` directory and subdirectories.
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According to your needs, you can edit all variables in `inventory_yourInventoryName/group_vars` directory and subdirectories.
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You can also define host-specific variables (reboot/upgrade enable/disabe, cron hours, specific config, ...) in the host_vars directory (host.example.org is a commented example). Don't forget to update .gitignore if you don't want to publish some host vars.
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You can also define host-specific variables (reboot/upgrade enable/disabe, cron hours, specific config, ...) in the `inventory_yourInventoryName/host_vars` directory (host.example.org is an example). Don't forget to update .gitignore if you don't want to publish some host vars.
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## Nodes preparation
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On the node, with the root account (or sudo) :
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On the node, with the root account (or sudo):
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* Install SSH, sudo and gentoolkit (if Gentoo) OR python-apt (if Debian) OR python-yum (if CentOS) ...
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* Configure, enable and start SSH service.
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@ -119,9 +121,9 @@ mkdir -p .ssh
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vi .ssh/authorized_keys # Here add pubkey
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```
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> Note : this procedure can vary slightly if you're not using a Debian or CentOS node.
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> Note: this procedure can vary slightly if you're not using a Debian or CentOS node.
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On the Ansible server (or local machine), check the SSH connection :
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On the Ansible server (or local machine), check the SSH connection:
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```bash
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ssh ansible@<YOUR_MANAGED_NODE>
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@ -130,25 +132,25 @@ exit
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## Deployment
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From the Ansible server (or your local machine), you can deploy specific playbooks using the following command :
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From the Ansible server (or your local machine), you can deploy specific playbooks using the following command:
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```bash
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ansible-playbook -i inventory_yourInventoryName.yml <playbook_name> --ask-vault-pass
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ansible-playbook -i inventory_yourInventoryName/inventory.yml <playbook_name> --ask-vault-pass
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```
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> Notes :
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> Notes:
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>
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> * `--diff` option can be added to see the difference applied.
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> * `--check` option can be added to test the deployment without really do any action on the remote node (in some cases it fails even if the deployment will go well).
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> * `--limit` option can be added to select host to configure (ex: `--limit os_gentoo`)
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Playbook deployment :
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Playbook deployment:
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* playbook_general_deploy.yml
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### playbook_general_deploy.yml
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This playbook deploys general configuration : tools (useful packages), auto reboot, auto upgrade, sudo users, NTP client, iptables config and DNS resolvers.
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This playbook deploys general configuration: tools (useful packages), auto reboot, auto upgrade, sudo users, NTP client, iptables config and DNS resolvers.
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### Other playbooks will be written...
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@ -1,25 +0,0 @@
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all:
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vars:
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ansible_user: ansible
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ansible_become: yes
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ansible_python_interpreter: auto_silent
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children:
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function:
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children:
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munin_server:
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hosts:
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myFirstGentooHost.example.org:
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os:
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children:
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os_gentoo:
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hosts:
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myFirstGentooHost.example.org:
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mySecondGentooHost.anotherexample.org:
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os_debian:
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hosts:
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myFirstDebianHost.example.org:
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mySecondDebianHost.anotherexample.org:
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os_centos:
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hosts:
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myFirstCentOSHost.example.org:
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mySecondCentOSHost.anotherexample.org:
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