[Backport release-1.30] Applier manager improvements #5172
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The map is only ever used in the loop to create and remove stacks, so it doesn't need to be stored in the struct. This ensures that there can't be any racy concurrent accesses to it. Signed-off-by: Tom Wieczorek <[email protected]> (cherry picked from commit ba547ed) (cherry picked from commit c6dba06)
The only reason these channels get closed is if the watcher itself gets closed. This happens only when the method returns, which in turn only happens when the context is done. In this case, the loop has already exited without a select on a potentially closed channel. So the branches that checked for closed channels were effectively unreachable during runtime. Signed-off-by: Tom Wieczorek <[email protected]> (cherry picked from commit db5e0d2) (cherry picked from commit 102b7e3)
Rename cancelWatcher to stop and wait until the newly added stopped channel is closed. Also, add a stopped channel to each stack to do the same for each stack-specific goroutine. Signed-off-by: Tom Wieczorek <[email protected]> (cherry picked from commit 402c728) (cherry picked from commit dbc286c)
Cancel the contexts with a cause. Add this cause to the log statements when exiting loops. Rename bundlePath to bundleDir to reflect the fact that it is a directory, not a file. Signed-off-by: Tom Wieczorek <[email protected]> (cherry picked from commit edb105c) (cherry picked from commit a22902b)
Exit the loop on error and restart it after a one-minute delay to allow it to recover in a new run. Also replace the bespoke retry loop for stacks with the Kubernetes client's wait package. Signed-off-by: Tom Wieczorek <[email protected]> (cherry picked from commit 404c6cf) (cherry picked from commit 3058460)
Seems to be a remnant from the past. Signed-off-by: Tom Wieczorek <[email protected]> (cherry picked from commit c2beea7) (cherry picked from commit 4b2efbe)
twz123
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area/controlplane
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backport/release-1.29
ncopa
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Nov 29, 2024
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Backport to
release-1.30:Partially, without the test case (3502970). See Applier manager improvements #5062 (comment).
See: