open-nomad/command/agent/consul/connect_proxies_test.go
Seth Hoenig ed13e5723f consul/connect: dynamically select envoy sidecar at runtime
As newer versions of Consul are released, the minimum version of Envoy
it supports as a sidecar proxy also gets bumped. Starting with the upcoming
Consul v1.9.X series, Envoy v1.11.X will no longer be supported. Current
versions of Nomad hardcode a version of Envoy v1.11.2 to be used as the
default implementation of Connect sidecar proxy.

This PR introduces a change such that each Nomad Client will query its
local Consul for a list of Envoy proxies that it supports (https://github.com/hashicorp/consul/pull/8545)
and then launch the Connect sidecar proxy task using the latest supported version
of Envoy. If the `SupportedProxies` API component is not available from
Consul, Nomad will fallback to the old version of Envoy supported by old
versions of Consul.

Setting the meta configuration option `meta.connect.sidecar_image` or
setting the `connect.sidecar_task` stanza will take precedence as is
the current behavior for sidecar proxies.

Setting the meta configuration option `meta.connect.gateway_image`
will take precedence as is the current behavior for connect gateways.

`meta.connect.sidecar_image` and `meta.connect.gateway_image` may make
use of the special `${NOMAD_envoy_version}` variable interpolation, which
resolves to the newest version of Envoy supported by the Consul agent.

Addresses #8585 #7665
2020-10-13 09:14:12 -05:00

19 lines
367 B
Go

package consul
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestConnectProxies_Proxies(t *testing.T) {
agentAPI := NewMockAgent()
pc := NewConnectProxiesClient(agentAPI)
proxies, err := pc.Proxies()
require.NoError(t, err)
require.Equal(t, map[string][]string{
"envoy": []string{"1.14.2", "1.13.2", "1.12.4", "1.11.2"},
}, proxies)
}