feat: add gRPC healthchecks #863
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This was referenced Aug 25, 2023
Codecov Report
@@ Coverage Diff @@
## main #863 +/- ##
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- Coverage 72.81% 72.80% -0.02%
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Files 27 27
Lines 2755 2765 +10
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+ Hits 2006 2013 +7
- Misses 664 665 +1
- Partials 85 87 +2
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Overal looks good 🙌 |
thisthat
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@Kavindu-Dodan @thisthat I've fixed that issue. Please re-review. |
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* adds a gRPC healthcheck to the "metrics" port * supports both gRPC and HTTP on "metrics" port * adds relevant doc Signed-off-by: Todd Baert <todd.baert@dynatrace.com>
Signed-off-by: Todd Baert <todd.baert@dynatrace.com>
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thisthat
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Aug 28, 2023
Kavindu-Dodan
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beeme1mr
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Co-authored-by: Michael Beemer <beeme1mr@users.noreply.github.com> Signed-off-by: Todd Baert <todd.baert@dynatrace.com>
Signed-off-by: Todd Baert <todd.baert@dynatrace.com>
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🤖 I have created a release *beep* *boop* --- <details><summary>flagd: 0.6.4</summary> ## [0.6.4](flagd/v0.6.3...flagd/v0.6.4) (2023-08-30) ### 🐛 Bug Fixes * **deps:** update module github.com/cucumber/godog to v0.13.0 ([#855](#855)) ([5b42486](5b42486)) * **deps:** update module github.com/open-feature/flagd/core to v0.6.3 ([#794](#794)) ([9671964](9671964)) ### 🧹 Chore * **deps:** update golang docker tag to v1.21 ([#822](#822)) ([effe29d](effe29d)) </details> <details><summary>flagd-proxy: 0.2.9</summary> ## [0.2.9](flagd-proxy/v0.2.8...flagd-proxy/v0.2.9) (2023-08-30) ### 🐛 Bug Fixes * **deps:** update module github.com/open-feature/flagd/core to v0.6.3 ([#794](#794)) ([9671964](9671964)) ### 🧹 Chore * **deps:** update golang docker tag to v1.21 ([#822](#822)) ([effe29d](effe29d)) </details> <details><summary>core: 0.6.4</summary> ## [0.6.4](core/v0.6.3...core/v0.6.4) (2023-08-30) ### 🐛 Bug Fixes * **deps:** update kubernetes packages to v0.28.0 ([#841](#841)) ([cc195e1](cc195e1)) * **deps:** update kubernetes packages to v0.28.1 ([#860](#860)) ([f3237c2](f3237c2)) * **deps:** update module github.com/open-feature/open-feature-operator to v0.2.36 ([#799](#799)) ([fa4da4b](fa4da4b)) * **deps:** update module golang.org/x/crypto to v0.12.0 ([#797](#797)) ([edae3fd](edae3fd)) * **deps:** update module golang.org/x/net to v0.14.0 ([#798](#798)) ([92c2f26](92c2f26)) * **deps:** update module sigs.k8s.io/controller-runtime to v0.15.1 ([#795](#795)) ([13d62fd](13d62fd)) * **deps:** update module sigs.k8s.io/controller-runtime to v0.16.0 ([#856](#856)) ([88d832a](88d832a)) ### ✨ New Features * add flag key to hash in fractional evaluation ([#847](#847)) ([ca6a35f](ca6a35f)) * add gRPC healthchecks ([#863](#863)) ([da30b7b](da30b7b)) * support nested props in fractional evaluator ([#869](#869)) ([50ff739](50ff739)) ### 🧹 Chore * deprecate fractionalEvaluation for fractional ([#873](#873)) ([243fef9](243fef9)) * replace xxh3 with murmur3 in bucket algorithm ([#846](#846)) ([c3c9e4e](c3c9e4e)) </details> --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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@thisthat @Kavindu-Dodan @beeme1mr
I've closed the previous PR and gone about this a different way... Primarily because I realized it's a bad idea to put the healthcheck on the "main" socket, since that can be bound not just to a TCP socket, but to a unix socket, which would be very problematic for a healthcheck 😅 .
I've instead added the new gRPC health checks to the "metrics" ports of both
flagdandflagd-proxywith some basic home-grown multiplexing code. I strongly recommend we re-name this port from "metrics" to "management" in a subsequent PR, since we are not just using it for metrics (we can probably use viper to make this non-breaking, ie use "metricsPort" if "managementPort" is missing).@thisthat another bonus is this approach doesn't require and new deps, and therefore no proto conflicts!
fixes: #831