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Provide simple storage driver health check

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To ensure the ensure the web application is properly operating, we've added a
periodic health check for the storage driver. If the health check fails three
times in a row, the registry will serve 503 response status for any request
until the condition is resolved. The condition is reported in the response body
and via the /debug/health endpoint.

To ensure that all drivers will properly operate with this health check, a
function has been added to the driver testsuite.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day 2015-08-06 15:28:11 -07:00
parent 1d5b311fc4
commit 6ba799b69e
4 changed files with 135 additions and 20 deletions
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4
cmd/registry/main.go
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@ -17,7 +17,7 @@ import (
"github.com/bugsnag/bugsnag-go"
"github.com/docker/distribution/configuration"
"github.com/docker/distribution/context"
_ "github.com/docker/distribution/health"
"github.com/docker/distribution/health"
_ "github.com/docker/distribution/registry/auth/htpasswd"
_ "github.com/docker/distribution/registry/auth/silly"
_ "github.com/docker/distribution/registry/auth/token"
@ -70,8 +70,10 @@ func main() {
uuid.Loggerf = context.GetLogger(ctx).Warnf
app := handlers.NewApp(ctx, *config)
app.RegisterHealthChecks()
handler := configureReporting(app)
handler = panicHandler(handler)
handler = health.Handler(handler)
handler = gorhandlers.CombinedLoggingHandler(os.Stdout, handler)
if config.HTTP.Debug.Addr != "" {