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Restore Graceful Restarting & Socket Activation (#7274)

* Prevent deadlock in indexer initialisation during graceful restart

* Move from gracehttp to our own service to add graceful ssh

* Add timeout for start of indexers and make hammer time configurable

* Fix issue with re-initialization in indexer during tests

* move the code to detect use of closed to graceful

* Handle logs gracefully - add a pid suffix just before restart

* Move to using a cond and a holder for indexers

* use time.Since

* Add some comments and attribution

* update modules.txt

* Use zero to disable timeout

* Move RestartProcess to its own file

* Add cleanup routine
This commit is contained in:
zeripath 2019-10-15 14:39:51 +01:00 committed by GitHub
parent 4a290bd64c
commit 167e8f18da
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45 changed files with 1202 additions and 2009 deletions

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@ -97,6 +97,8 @@ var (
LetsEncryptTOS bool
LetsEncryptDirectory string
LetsEncryptEmail string
GracefulRestartable bool
GracefulHammerTime time.Duration
SSH = struct {
Disabled bool `ini:"DISABLE_SSH"`
@ -563,6 +565,8 @@ func NewContext() {
Domain = sec.Key("DOMAIN").MustString("localhost")
HTTPAddr = sec.Key("HTTP_ADDR").MustString("0.0.0.0")
HTTPPort = sec.Key("HTTP_PORT").MustString("3000")
GracefulRestartable = sec.Key("ALLOW_GRACEFUL_RESTARTS").MustBool(true)
GracefulHammerTime = sec.Key("GRACEFUL_HAMMER_TIME").MustDuration(60 * time.Second)
defaultAppURL := string(Protocol) + "://" + Domain
if (Protocol == HTTP && HTTPPort != "80") || (Protocol == HTTPS && HTTPPort != "443") {