Bug 2032565
| Summary: | Deploying compressed files with a MachineConfig resource degrades the MachineConfigPool | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Sergio <sregidor> |
| Component: | Machine Config Operator | Assignee: | Zack Zlotnik <zzlotnik> |
| Machine Config Operator sub component: | Machine Config Operator | QA Contact: | Sergio <sregidor> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | high | ||
| Priority: | unspecified | CC: | aos-bugs, jerzhang, mkrejci, rioliu, skumari, zzlotnik |
| Version: | 4.10 | ||
| Target Milestone: | --- | ||
| Target Release: | 4.10.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-03-10 16:33:57 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Thanks for reporting this. This was indeed caused by https://github.com/openshift/machine-config-operator/pull/2795. What's happening is: - The MachineConfig specifies a file which is compressed. The MCD applies the config to disk. - While it applies the config to disk, the MCD decompresses the file before writing it. - The Config Drift Monitor attempts to compare the decompressed on-disk file contents to the compressed contents specified in the MachineConfig. - Because the decompressed contents do not match the compressed contents, the Config Drift Monitor marks the node Degraded. I've implemented a fix: https://github.com/openshift/machine-config-operator/pull/2874 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.10.3 security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2022:0056 |
Description of problem: When we create a MachineConfig using a compressed file, the MachineConfigPool is degraded. The pool cannot be recovered by editing the desiderconfig and currentconfig information in the degraded node. Version-Release number of MCO (Machine Config Operator) (if applicable): 4.10.0-0.nightly-2021-12-14-083101 Platform (AWS, VSphere, Metal, etc.): AWS Are you certain that the root cause of the issue being reported is the MCO (Machine Config Operator)? (Y/N/Not sure): Yes How reproducible: Always Did you catch this issue by running a Jenkins job? If yes, please list: 1. Jenkins job: 2. Profile: Steps to Reproduce: 1. Create this machine config to deploy a file in compressed format cat << EOF | oc create -f - apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: gzip-compression-test-mc spec: config: ignition: version: 3.2.0 storage: files: - contents: compression: gzip source: data:;base64,H4sIAAAAAAACAzWQQW5DMQhE9/8Uc4Aop2h33fYA1CYpko0dA1GOX9zf7owwM/PmYyzukGnRUUcbCyYO6uwXlKHGxdljgapMsSJ6BzfJpXHNg4MlrI8K5z7zWLRIlRrqCEejr5QH+ynN6HRXAjV5BF2BTz9Ypac4uuzHM0fqFzxCDDrMV1Twi1cRJ5ehiNaol3FKix0qJtvqV1NmfgZTJu8ZapwE6eVp9rY1KZwhKzLLSSt6LJ6Lv1krr0QXxXO0mOnHmSdZwWaMIq39d5RIgVvchfzQnQiTVg6x0uf9VXg6x24yaxilEBdylJhSKWUTTDHXkMrql8N2Welaok3a5Bi3mxQhVDZee9tH2zloVyRZiP1VG/16/ACjjAk6wQEAAA== path: /etc/test-file EOF Actual results: The worker pool is degraded $ oc get mcp worker NAME CONFIG UPDATED UPDATING DEGRADED MACHINECOUNT READYMACHINECOUNT UPDATEDMACHINECOUNT DEGRADEDMACHINECOUNT AGE worker rendered-worker-7c56e617174ffbdd5168f67d4156687c False True True 2 1 1 1 93m The degraded node is reporting this reason for the degrade status $ oc get node $NODE -o yaml ... machineconfiguration.openshift.io/reason: 'unexpected on-disk state validating against rendered-worker-f3c8ed833206d614ba32ba6e7896c18c: content mismatch for file "/etc/test-file"' machineconfiguration.openshift.io/state: Degraded Expected results: The file described in compressed format should be deployed without problems Additional info: It could be a regression due to proactive config drift monitor https://github.com/openshift/machine-config-operator/pull/2795. Compressed files will always error and cannot recover.