42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
graph TD
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req(Request Initiated)
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resp(Response closed)
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subgraph RedirectToHTTPS
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isRDHTTPs{Is redirect to HTTPs Enabled?}
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requestNeedsRedirect{Request is HTTP or X-Forwarded-Proto not HTTPS}
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redirectToHTTPS(Send redirect to HTTPs)
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rdHTTPSNext(Send to next server)
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end
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isGCPHealthCheck{Is GCP HealthCheck enabled?}
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subgraph GCPHealthCheck
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livenessCheck{Request path is /liveness_check}
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readinessCheck{Request path is /readiness_check}
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gcpUserAgent{Path is / and user agent is 'GoogleHC/1.0'}
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gcpOk(Send OK response)
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gcpNext(Send to next server)
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end
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req --> isRDHTTPs
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%% RedirectToHTTPS
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isRDHTTPs -- yes --> requestNeedsRedirect
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isRDHTTPs -- no --> rdHTTPSNext
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requestNeedsRedirect -- yes --> redirectToHTTPS
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requestNeedsRedirect -- no --> rdHTTPSNext
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redirectToHTTPS --> resp
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rdHTTPSNext --> isGCPHealthCheck
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%% GCPHealthCheck
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livenessCheck -- yes --> gcpOk
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livenessCheck -- no --> readinessCheck
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readinessCheck -- yes --> gcpOk
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readinessCheck -- no --> gcpUserAgent
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gcpUserAgent -- yes --> gcpOk
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gcpUserAgent -- no --> gcpNext
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gcpOk --> resp
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isGCPHealthCheck -- yes --> livenessCheck
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