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Bug
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Resolution: Unresolved
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Normal
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None
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4.20, 4.21
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None
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None
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False
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None
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Moderate
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Yes
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None
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None
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None
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None
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None
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None
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None
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None
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None
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None
Description of problem:
network-tools pod-run-netns-command option --no-substitution does not work, the variables were substituted even use the option
Version-Release number of selected component (if applicable):
4.20, 4/21
How reproducible:
always
Steps to Reproduce:
Run command that needs to preserve the literal meaning with --no-substitution, following example in help: % oc adm must-gather --image-stream=openshift/network-tools:latest -- network-tools pod-run-netns-command --no-substitution test hello-pod "'"'i=0; i=$(( $i + 1 )); echo result$i'"'" [must-gather ] OUT 2026-01-26T12:14:31.616298Z Using must-gather plug-in image: quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:485ea58f6ab78e43d625d1ba29ec88101ce83b50710040fa6c89e74ba000ca68 When opening a support case, bugzilla, or issue please include the following summary data along with any other requested information: ClusterID: 21a670a5-ac3e-49ee-b3fd-bc274482330d ClientVersion: 4.21.0-0.nightly-2026-01-17-030111 ClusterVersion: Stable at "4.21.0-0.nightly-2026-01-22-192129" ClusterOperators: All healthy and stable [must-gather ] OUT 2026-01-26T12:14:32.578909Z namespace/openshift-must-gather-ndngz created [must-gather ] OUT 2026-01-26T12:14:32.842178Z clusterrolebinding.rbac.authorization.k8s.io/must-gather-vqz2p created [must-gather ] OUT 2026-01-26T12:14:33.59489Z pod for plug-in image quay.io/openshift-release-dev/ocp-v4.0-art-dev@sha256:485ea58f6ab78e43d625d1ba29ec88101ce83b50710040fa6c89e74ba000ca68 created [must-gather-qdz4f] POD 2026-01-26T12:14:34.310215155Z [disk usage checker] Started [must-gather-qdz4f] POD 2026-01-26T12:14:34.313572415Z [disk usage checker] Volume usage percentage: current = 16 ; allowed = 70 [must-gather-qdz4f] POD 2026-01-26T12:14:34.769369387Z Starting pod/ip-10-0-12-46us-east-2computeinternal-debug-5ktmr ... [must-gather-qdz4f] POD 2026-01-26T12:14:34.769369387Z To use host binaries, run `chroot /host`. Instead, if you need to access host namespaces, run `nsenter -a -t 1`. [must-gather-qdz4f] POD 2026-01-26T12:14:35.780536421Z [must-gather-qdz4f] POD 2026-01-26T12:14:35.780536421Z Removing debug pod ... [must-gather-qdz4f] POD 2026-01-26T12:14:35.800190152Z [must-gather-qdz4f] POD 2026-01-26T12:14:35.800190152Z INFO: Running 'i=0; i=1; echo result' in the netns of pod hello-pod [must-gather-qdz4f] POD 2026-01-26T12:14:35.903490615Z Starting pod/ip-10-0-12-46us-east-2computeinternal-debug-rf7l7 ... [must-gather-qdz4f] POD 2026-01-26T12:14:35.903528819Z To use host binaries, run `chroot /host`. Instead, if you need to access host namespaces, run `nsenter -a -t 1`. [must-gather-qdz4f] POD 2026-01-26T12:14:36.781664559Z result [must-gather-qdz4f] POD 2026-01-26T12:14:36.782150211Z [must-gather-qdz4f] POD 2026-01-26T12:14:36.782150211Z Removing debug pod ... [must-gather-qdz4f] POD 2026-01-26T12:14:36.814799286Z Caches written to disk [must-gather-qdz4f] OUT 2026-01-26T12:14:44.254585Z waiting for gather to complete [must-gather-qdz4f] OUT 2026-01-26T12:14:44.468883Z downloading gather output [must-gather-qdz4f] OUT 2026-01-26T12:14:49.687927Z Transfer starting: 1 files [must-gather-qdz4f] OUT 2026-01-26T12:14:49.688098Z ./ [must-gather-qdz4f] OUT 2026-01-26T12:14:49.688118Z [must-gather-qdz4f] OUT 2026-01-26T12:14:49.688134Z sent 22 bytes received 58 bytes 800000 bytes/sec [must-gather-qdz4f] OUT 2026-01-26T12:14:49.688288Z total size is 0 speedup is 0.00 [must-gather ] OUT 2026-01-26T12:14:49.909507Z namespace/openshift-must-gather-ndngz deleted Reprinting Cluster State: When opening a support case, bugzilla, or issue please include the following summary data along with any other requested information: ClusterID: 21a670a5-ac3e-49ee-b3fd-bc274482330d ClientVersion: 4.21.0-0.nightly-2026-01-17-030111 ClusterVersion: Stable at "4.21.0-0.nightly-2026-01-22-192129" ClusterOperators: All healthy and stable
Actual results:
The variables were substituted even use the option log in output: [must-gather-qdz4f] POD 2026-01-26T12:14:35.800190152Z INFO: Running 'i=0; i=1; echo result' in the netns of pod hello-pod result of the command in output: [must-gather-qdz4f] POD 2026-01-26T12:14:36.781664559Z result
Expected results:
The variables should not be substituted expected log in output: INFO: Running 'i=0; i=$(( $i + 1 )); echo result$i' in the netns of pod hello-pod expected result of the command in output: result1
Additional info:
