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Implement Traefik provider for Nomad orchestrator

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Seth Hoenig 2022-06-10 11:32:08 -05:00 • committed by GitHub
parent becee5e393
commit aa0b5466a9
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23 changed files with 4328 additions and 7 deletions
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169
pkg/provider/nomad/nomad_test.go Normal file
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package nomad
import (
"context"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/stretchr/testify/require"
)
func Test_globalConfig(t *testing.T) {
cases := []struct {
Name string
Prefix string
Tags []string
ExposedByDefault bool
exp configuration
}{
{
Name: "expose_by_default_no_tags",
Prefix: "traefik",
Tags: nil,
ExposedByDefault: true,
exp: configuration{Enable: true},
},
{
Name: "not_expose_by_default_no_tags",
Prefix: "traefik",
Tags: nil,
ExposedByDefault: false,
exp: configuration{Enable: false},
},
{
Name: "expose_by_default_tags_enable",
Prefix: "traefik",
Tags: []string{"traefik.enable=true"},
ExposedByDefault: true,
exp: configuration{Enable: true},
},
{
Name: "expose_by_default_tags_disable",
Prefix: "traefik",
Tags: []string{"traefik.enable=false"},
ExposedByDefault: true,
exp: configuration{Enable: false},
},
{
Name: "expose_by_default_tags_enable_custom_prefix",
Prefix: "custom",
Tags: []string{"custom.enable=true"},
ExposedByDefault: true,
exp: configuration{Enable: true},
},
{
Name: "expose_by_default_tags_disable_custom_prefix",
Prefix: "custom",
Tags: []string{"custom.enable=false"},
ExposedByDefault: true,
exp: configuration{Enable: false},
},
}
for _, test := range cases {
t.Run(test.Name, func(t *testing.T) {
p := Provider{ExposedByDefault: test.ExposedByDefault, Prefix: test.Prefix}
result := p.globalConfig(test.Tags)
require.Equal(t, test.exp, result)
})
}
}
func Test_getNomadServiceData(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch {
case strings.HasSuffix(r.RequestURI, "/v1/services"):
_, _ = w.Write([]byte(services))
case strings.HasSuffix(r.RequestURI, "/v1/service/redis"):
_, _ = w.Write([]byte(redis))
case strings.HasSuffix(r.RequestURI, "/v1/service/hello-nomad"):
_, _ = w.Write([]byte(hello))
}
}))
t.Cleanup(ts.Close)
p := new(Provider)
p.SetDefaults()
p.Endpoint.Address = ts.URL
err := p.Init()
require.NoError(t, err)
// fudge client, avoid starting up via Provide
p.client, err = createClient(p.Namespace, p.Endpoint)
require.NoError(t, err)
// make the query for services
items, err := p.getNomadServiceData(context.TODO())
require.NoError(t, err)
require.Len(t, items, 2)
}
const services = `
[
{
"Namespace": "default",
"Services": [
{
"ServiceName": "redis",
"Tags": [
"traefik.enable=true"
]
},
{
"ServiceName": "hello-nomad",
"Tags": [
"traefik.enable=true",
"traefik.http.routers.hellon.entrypoints=web",
"traefik.http.routers.hellon.service=hello-nomad"
]
}
]
}
]
`
const redis = `
[
{
"Address": "127.0.0.1",
"AllocID": "07501480-8175-8071-7da6-133bd1ff890f",
"CreateIndex": 46,
"Datacenter": "dc1",
"ID": "_nomad-task-07501480-8175-8071-7da6-133bd1ff890f-group-redis-redis-redis",
"JobID": "echo",
"ModifyIndex": 46,
"Namespace": "default",
"NodeID": "6d7f412e-e7ff-2e66-d47b-867b0e9d8726",
"Port": 30826,
"ServiceName": "redis",
"Tags": [
"traefik.enable=true"
]
}
]
`
const hello = `
[
{
"Address": "127.0.0.1",
"AllocID": "71a63a80-a98a-93ee-4fd7-73b808577c20",
"CreateIndex": 18,
"Datacenter": "dc1",
"ID": "_nomad-task-71a63a80-a98a-93ee-4fd7-73b808577c20-group-hello-nomad-hello-nomad-http",
"JobID": "echo",
"ModifyIndex": 18,
"Namespace": "default",
"NodeID": "6d7f412e-e7ff-2e66-d47b-867b0e9d8726",
"Port": 20627,
"ServiceName": "hello-nomad",
"Tags": [
"traefik.enable=true",
"traefik.http.routers.hellon.entrypoints=web",
"traefik.http.routers.hellon.service=hello-nomad"
]
}
]
`