README
¶
Ignition
Ignition is the utility used by Fedora CoreOS and RHEL CoreOS to manipulate disks during the initramfs. This includes partitioning disks, formatting partitions, writing files (regular files, systemd units, etc.), and configuring users. On first boot, Ignition reads its configuration from a source of truth (remote URL, network metadata service, hypervisor bridge, etc.) and applies the configuration.
Usage
Odds are good that you don't want to invoke Ignition directly. In fact, it isn't even present in the root filesystem. Take a look at the Getting Started Guide for details on providing Ignition with a runtime configuration.
Contact
- Mailing list: coreos@lists.fedoraproject.org
- IRC: #fedora-coreos on Libera.Chat
- Reporting bugs: issues
Contributing
See CONTRIBUTING for details on submitting patches and the contribution workflow.
To help triage or fix bugs, see the current Ignition issues.
Config Validation
To validate a config for Ignition there are binaries for a cli tool called ignition-validate available on the releases page. There is also an ignition-validate container: quay.io/coreos/ignition-validate.
Example:
# This example uses podman, but docker can be used too
podman run --pull=always --rm -i quay.io/coreos/ignition-validate:release - < myconfig.ign
Directories
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| Path | Synopsis |
|---|---|
|
shared
Package shared contains types, validations, errors, etc that may be shared between multiple config versions safely.
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Package shared contains types, validations, errors, etc that may be shared between multiple config versions safely. |
|
shared/errors
Package errors includes errors that are used in multiple config versions
|
Package errors includes errors that are used in multiple config versions |
|
shared/parse
Package parse contains a function for parsing unit contents shared between multiple config versions.
|
Package parse contains a function for parsing unit contents shared between multiple config versions. |
|
shared/validations
Package validations contains validations shared between multiple config versions.
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Package validations contains validations shared between multiple config versions. |
|
earlyrand
Package earlyrand provides a non-blocking reader to a source of randomness that can be used at early-boot.
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Package earlyrand provides a non-blocking reader to a source of randomness that can be used at early-boot. |