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Update Helm Chart for running API Gateways in Agentless config and with external servers #1694

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merged 13 commits into from Nov 15, 2022

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t-eckert
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@t-eckert t-eckert commented Nov 10, 2022

Changes proposed in this PR:

  • Add a key to the Helm chart externalServers.httpPort.
  • Set CONSUL_HTTP_ADDR to the first external server host when externalServers is enabled.
  • Set CONSUL_HTTP_ADDR using Kube DNS when running with local servers.
  • Change addresses to not have http(s):// and instead set this using the CONSUL_HTTP_SSL environment variable.
  • Add environment variable to API Gateway controller deployment for CONSUL_TLS_SERVER_NAME to support SNI with external servers.
  • Set the consul.address for the GatewayClassConfig whether using external or local servers.
  • Set ports for the three protocols when running with external servers.
  • Add the BATS tests for these changes.

How I've tested this PR:

  • BATS!
  • Deployed API Gateways 0.4.0 with Consul-k8s 1.0.0-beta5 (Agentful) and local servers
  • Deployed API Gateways 0.5.0 with Consul-k8s 1.0.0-beta5 (Agentful) and local servers
  • Deployed API Gateways 0.4.0 with Consul-k8s 1.0.0-beta5 (Agentless) and local servers
  • Deployed API Gateways 0.5.0 with Consul-k8s 1.0.0-beta5 (Agentless) and local servers
  • Deployed API Gateways 0.4.0 with Consul-k8s 1.0.0-beta5 (Agentful) and external servers
  • Deployed API Gateways 0.5.0 with Consul-k8s 1.0.0-beta5 (Agentful) and external servers
  • Deployed API Gateways 0.5.0 with Consul-k8s 1.0.0-beta5 (Agentless) and external servers

Also verified that "Deployed API Gateways 0.4.0 with Consul-k8s 1.0.0-beta5 (Agentless) and external servers" does not work as is expected.

How I expect reviewers to test this PR:

  • BATS!

Checklist:

  • Tests added
  • CHANGELOG entry added

    HashiCorp engineers only, community PRs should not add a changelog entry.
    Entries should use present tense (e.g. Add support for...)

@andrewstucki
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andrewstucki commented Nov 10, 2022

Hey @t-eckert just heads up, but just for some clarity I think we probably want the following for full compatibility. Checked are the ones that I think are the highest priority.

Agent-based

  • Deployed hashicorp/consul-api-gateway:0.4 with Consul-k8s 1.0.0-beta5 (Agentful) and local servers
  • Deployed hashicorppreview/consul-api-gateway:0.5-dev with Consul-k8s 0.49.0 (Agentful) and local servers
  • Deployed hashicorppreview/consul-api-gateway:0.5-dev with Consul-k8s 1.0.0-beta5 (Agentful) and local servers
  • Deployed hashicorppreview/consul-api-gateway:0.5-dev with Consul-k8s 1.0.0-beta5 (Agentful) and external servers

Agentless

  • Deployed hashicorppreview/consul-api-gateway:0.5-dev with Consul-k8s 1.0.0-beta5 (Agentless) and local servers
  • Deployed hashicorppreview/consul-api-gateway:0.5-dev with Consul-k8s 1.0.0-beta5 (Agentless) and external servers

The agentless/external setup will not work with our 0.4 release.

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Generally LGTM other than adding a test for CONSUL_HTTP_SSL. If you need any help verifying the configurations, let me know.

@t-eckert t-eckert force-pushed the te/gateway-agentless branch 2 times, most recently from f8e1898 to b5730b3 Compare November 10, 2022 18:27
@t-eckert t-eckert marked this pull request as ready for review November 11, 2022 20:03
@t-eckert t-eckert requested review from andrewstucki, a team, ndhanushkodi and ishustava and removed request for a team November 11, 2022 20:03
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One last change to add a test and then I'm good on feedback at this point, though you should probably wait for someone from the k8s team to sign off too.

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Minor suggested tweaks to the comments for clarity, overall LGTM and feels like we'll have a good backwards compatibility/upgrade path story with this implemented.

charts/consul/values.yaml Show resolved Hide resolved
Thomas Eckert and others added 2 commits November 14, 2022 14:43
Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com>
Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com>
@t-eckert t-eckert merged commit bb97310 into main Nov 15, 2022
@t-eckert t-eckert deleted the te/gateway-agentless branch November 15, 2022 16:12
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4 participants