Simple tool to convert files to MachineConfig objects to be used with the machine-config-operator in Kubernetes/OpenShift.
NOTE: It only supports Ignition configuration specification 2.2 so far.
- Linux/OSX/Windows support (and binaries available in releases/)
- remote path = local path if not provided
- remote owner/group = local if not provided
- sane defaults (...)
- normalized parameters (...)
- multiple labels support
- base64 file encoded content support
- json output
- yaml output
- Improve normalization and defaults
- Multiple ignition version
- Good code
- Better error handling
If using Fedora/CentOS, you can use this copr, otherwise download the latest binary release:
wget -L https://github.com/e-minguez/file-to-machineconfig/releases/download/0.0.3/file-to-machineconfig-linux-amd64 && \
mv file-to-machineconfig-linux-amd64 ./file-to-machineconfig && \
chmod a+x ./file-to-machineconfigOr, get the code with:
go get -u -v github.com/e-minguez/file-to-machineconfigNOTE: This requires golang to be installed and GOPATH properly configured.
Then:
file-to-machineconfig --file /local/path/to/my/file.txt > ./my-machine-config.jsonUse file-to-machineconfig --help for a more complete usage and flags.
WARNING: Review the generated output first, do not pipe the output directly to
kubectloroc!!!
echo "vm.swappiness=10" > ./myswap.conf
file-to-machineconfig --file ./myswap.conf --remote /etc/sysctl.d/swappiness.conf -yaml > myswap.yaml
...[output]...
2019/11/04 14:55:40 name not provided, using '99-worker-etc-sysctl-d-swappiness-conf' as name
2019/11/04 14:55:40 labels not provided, using 'machineconfiguration.openshift.io/role: worker' by default
2019/11/04 14:55:40 filesystem not provided, using 'root' by default
2019/11/04 14:55:40 apiver not provided, using 'machineconfiguration.openshift.io/v1' by default
2019/11/04 14:55:40 user not provided, using 'edu' as the original file
2019/11/04 14:55:40 group not provided, using 'edu' as the original file
2019/11/04 14:55:40 mode not provided, using '0664' as the original file
cat ./myswap.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
creationTimestamp: null
labels:
machineconfiguration.openshift.io/role: worker
name: 99-worker-etc-sysctl-d-swappiness-conf
spec:
config:
ignition:
config: {}
security:
tls: {}
timeouts: {}
version: 2.2.0
networkd: {}
passwd: {}
storage:
files:
- contents:
source: data:text/plain;charset=utf-8;base64,dm0uc3dhcHBpbmVzcz0xMAo=
verification: {}
filesystem: root
group:
name: edu
mode: 436
path: /etc/sysctl.d/swappiness.conf
user:
name: edu
systemd: {}
osImageURL: ""Just to verify:
echo "dm0uc3dhcHBpbmVzcz0xMAo=" | base64 -d
vm.swappiness=10
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