fix: add ProxyCommand retry wrapper for sleep/wake reconnection#872
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fix: add ProxyCommand retry wrapper for sleep/wake reconnection#872
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After sleep/wake, DNS resolution often fails transiently (systemd-resolved not ready). When `coder ssh` fails instantly, the Remote SSH extension sees unparsable output and throws a permanent SshResolverError.Create(), showing "Reload Window" instead of retrying. This wraps the ProxyCommand with a POSIX shell retry script that retries up to 10 times with 5s delays on quick failures (<10s runtime). The 5s sleep is long enough for the machine to fully suspend during it, so when it wakes, sleep returns immediately and the next retry succeeds with DNS working.
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systemd-resolvednot ready). Whencoder sshfails instantly, the Remote SSH extension sees unparsable output and throws a permanentSshResolverError.Create(), showing "Reload Window" instead of retrying.sleepreturns immediately and the next retry succeeds with DNS working.