Use cancelable contexts for cloud provider plugin refreshes (#4226)

This commit uses a cancelable context to spawn goroutines that refresh
records from a cloud DNS provider. The Caddy shutdown routine uses the
returned cancel function to terminate existing goroutines when a USR1
reload signal is received.

Signed-off-by: Matt Kulka <mkulka@parchment.com>
This commit is contained in:
Matt Kulka
2020-10-24 05:37:01 -07:00
committed by GitHub
parent 054c9ae1fb
commit 3168a722ca
6 changed files with 12 additions and 11 deletions

View File

@@ -87,11 +87,11 @@ func (h *Route53) Run(ctx context.Context) error {
for {
select {
case <-ctx.Done():
log.Infof("Breaking out of Route53 update loop: %v", ctx.Err())
log.Debugf("Breaking out of Route53 update loop for %v: %v", h.zoneNames, ctx.Err())
return
case <-time.After(h.refresh):
if err := h.updateZones(ctx); err != nil && ctx.Err() == nil /* Don't log error if ctx expired. */ {
log.Errorf("Failed to update zones: %v", err)
log.Errorf("Failed to update zones %v: %v", h.zoneNames, err)
}
}
}