83 lines
2.7 KiB
Markdown
83 lines
2.7 KiB
Markdown
This repository contains all infrastructure automation code that we use to set
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up and configure servers, virtual machines, and applications for Kosmos hosted
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services.
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Chef cookbooks are written in Ruby, and based on [Chef Infra
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resources](https://docs.chef.io/resources/). Some cookbooks contain integration
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test suites based on [Test Kitchen](https://docs.chef.io/workstation/kitchen/).
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Note: Manual configuration of servers and applications is highly discouraged,
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and can be overwritten or lost without notice!
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## Setup
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### Install Chef Workstation
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* macOS, Windows, RHEL, Ubuntu: https://docs.chef.io/workstation/install_workstation/
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* Arch Linux: https://aur.archlinux.org/packages/chef-workstation
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#### rbenv
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If you use rbenv to manage Ruby versions on your system, install the
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[rbenv-chef-workstation](https://github.com/docwhat/rbenv-chef-workstation)
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plugin.
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### Install gem dependencies
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Clone this repository, `cd` into it, and run:
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bundle install
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## Common tasks
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### Bootstrap a new host server
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knife zero bootstrap root@server-name.kosmos.org --run-list "role[base],role[kvm_host]" --secret-file .chef/encrypted_data_bag_secret
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### Bootstrap a new VM
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knife zero bootstrap ubuntu@zerotier-ip-address -x ubuntu --sudo --run-list "role[base],role[kvm_guest]" --secret-file .chef/encrypted_data_bag_secret
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### Bootstrap a new VM with environment and role/app (postgres replica as example)
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knife zero bootstrap ubuntu@10.1.1.134 -x ubuntu --sudo --environment production --run-list "role[base],role[kvm_guest],role[postgresql_replica]" --secret-file .chef/encrypted_data_bag_secret
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### Run Chef Zero on a host server
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knife zero converge -p2222 name:server-name.kosmos.org
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### Run Chef Zero on a VM
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knife zero converge -a knife_zero.host name:vm-name-23
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### Update Chef Client on a server:
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knife zero converge name:dev.kosmos.org --client-version 15.3.14
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### Upgrade Chef Client on a node:
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knife ssh -a knife_zero.host 'name:foo-1' 'curl -L https://chef.io/chef/install.sh | sudo bash -s -- -v 18.10.17'
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## Managing cookbooks
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Cookbooks are managed via Berkshelf. Run `berks --help` for command help.
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Install cookbooks listed in Berksfile:
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berks install
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Vendor installed cookbooks to the `cookbooks/` dir:
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berks vendor cookbooks/ --delete
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## "Expired" TLS certificates
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If you encounter expired TLS certificates during a Chef run (e.g. for remote
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files), the issue is likely that the certificate has been issued by Let's
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Encrypt and Chef is still using its own, outdated CA cert store (see
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[here](https://github.com/chef/chef/issues/12126#issuecomment-932067530) for
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example).
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As a hotfix, you can manually remove the "DST Root CA X3" cert from
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`/opt/chef/embedded/ssl/cert.pem` on the machine you're trying to converge.
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