Stop using /bin/sh for OVS commands #5364
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We can probably remove usage of |
We are currently using the shell (/bin/sh) to run ovs-appctl and ovs-ofctl commands, but there does not seem to be a reason to do so. Instead, we can invoke the binary directly with exec.Command and pass the arguments as a slice. Before this change, ovsVSwitchdUDS would return "/var/run/openvswitch/ovs-vswitchd.*.ctl" as a fallback value in case the PID of ovs-vswitchd could not be determined. The shell would then expand the wildcard patterns. I now believe that it is better to return an error in that case. We want to make sure that we use a valid file always (and returning the glob pattern would cause an error if multiple files match). If we run into issues because of this approach, we can update the code to expand the glob pattern programmatically and, if a single path matches, we can return that path. Signed-off-by: Antonin Bas <[email protected]>
Signed-off-by: Antonin Bas <[email protected]>
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/test-all |
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@tnqn sorry I need a new approval, I had a typo in the |
This was referenced Aug 9, 2023
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…5374) We are currently using the shell (/bin/sh) to run ovs-appctl and ovs-ofctl commands, but there does not seem to be a reason to do so. Instead, we can invoke the binary directly with exec.Command and pass the arguments as a slice. Before this change, ovsVSwitchdUDS would return "/var/run/openvswitch/ovs-vswitchd.*.ctl" as a fallback value in case the PID of ovs-vswitchd could not be determined. The shell would then expand the wildcard patterns. I now believe that it is better to return an error in that case. We want to make sure that we use a valid file always (and returning the glob pattern would cause an error if multiple files match). If we run into issues because of this approach, we can update the code to expand the glob pattern programmatically and, if a single path matches, we can return that path. Signed-off-by: Antonin Bas <[email protected]>
antoninbas
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Aug 9, 2023
…5372) We are currently using the shell (/bin/sh) to run ovs-appctl and ovs-ofctl commands, but there does not seem to be a reason to do so. Instead, we can invoke the binary directly with exec.Command and pass the arguments as a slice. Before this change, ovsVSwitchdUDS would return "/var/run/openvswitch/ovs-vswitchd.*.ctl" as a fallback value in case the PID of ovs-vswitchd could not be determined. The shell would then expand the wildcard patterns. I now believe that it is better to return an error in that case. We want to make sure that we use a valid file always (and returning the glob pattern would cause an error if multiple files match). If we run into issues because of this approach, we can update the code to expand the glob pattern programmatically and, if a single path matches, we can return that path. Signed-off-by: Antonin Bas <[email protected]>
antoninbas
added a commit
that referenced
this pull request
Aug 9, 2023
…5373) We are currently using the shell (/bin/sh) to run ovs-appctl and ovs-ofctl commands, but there does not seem to be a reason to do so. Instead, we can invoke the binary directly with exec.Command and pass the arguments as a slice. Before this change, ovsVSwitchdUDS would return "/var/run/openvswitch/ovs-vswitchd.*.ctl" as a fallback value in case the PID of ovs-vswitchd could not be determined. The shell would then expand the wildcard patterns. I now believe that it is better to return an error in that case. We want to make sure that we use a valid file always (and returning the glob pattern would cause an error if multiple files match). If we run into issues because of this approach, we can update the code to expand the glob pattern programmatically and, if a single path matches, we can return that path. Signed-off-by: Antonin Bas <[email protected]>
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We are currently using the shell (/bin/sh) to run ovs-appctl and ovs-ofctl commands, but there does not seem to be a reason to do so.
Instead, we can invoke the binary directly with exec.Command and pass the arguments as a slice.
Before this change, ovsVSwitchdUDS would return
"/var/run/openvswitch/ovs-vswitchd.*.ctl" as a fallback value in case the PID of ovs-vswitchd could not be determined. The shell would then expand the wildcard patterns. I now believe that it is better to return an error in that case. We want to make sure that we use a valid file always (and returning the glob pattern would cause an error if multiple files match). If we run into issues because of this approach, we can update the code to expand the glob pattern programmatically and, if a single path matches, we can return that path.