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backend/http: add support for configuration by environment variable (#25439)

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pull/26098/head
Matt Kasa 6 years ago committed by GitHub
parent 24f20177ee
commit c2e35ae3b5
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3 changed files with 107 additions and 25 deletions
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17
backend/remote-state/http/backend.go
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@ -22,44 +22,49 @@ func New() backend.Backend {
"address": &schema.Schema{
Type: schema.TypeString,
Required: true,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_ADDRESS", nil),
Description: "The address of the REST endpoint",
},
"update_method": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "POST",
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_UPDATE_METHOD", "POST"),
Description: "HTTP method to use when updating state",
},
"lock_address": &schema.Schema{
Type: schema.TypeString,
Optional: true,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_LOCK_ADDRESS", nil),
Description: "The address of the lock REST endpoint",
},
"unlock_address": &schema.Schema{
Type: schema.TypeString,
Optional: true,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_UNLOCK_ADDRESS", nil),
Description: "The address of the unlock REST endpoint",
},
"lock_method": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "LOCK",
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_LOCK_METHOD", "LOCK"),
Description: "The HTTP method to use when locking",
},
"unlock_method": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "UNLOCK",
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_UNLOCK_METHOD", "UNLOCK"),
Description: "The HTTP method to use when unlocking",
},
"username": &schema.Schema{
Type: schema.TypeString,
Optional: true,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_USERNAME", nil),
Description: "The username for HTTP basic authentication",
},
"password": &schema.Schema{
Type: schema.TypeString,
Optional: true,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_PASSWORD", nil),
Description: "The password for HTTP basic authentication",
},
"skip_cert_verification": &schema.Schema{
@ -71,19 +76,19 @@ func New() backend.Backend {
"retry_max": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 2,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_RETRY_MAX", 2),
Description: "The number of HTTP request retries.",
},
"retry_wait_min": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 1,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_RETRY_WAIT_MIN", 1),
Description: "The minimum time in seconds to wait between HTTP request attempts.",
},
"retry_wait_max": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 30,
DefaultFunc: schema.EnvDefaultFunc("TF_HTTP_RETRY_WAIT_MAX", 30),
Description: "The maximum time in seconds to wait between HTTP request attempts.",
},
},

74
backend/remote-state/http/backend_test.go
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@ -1,6 +1,7 @@
package http
import (
"os"
"testing"
"time"
@ -88,3 +89,76 @@ func TestHTTPClientFactory(t *testing.T) {
t.Fatalf("Expected retry_wait_max \"%s\", got \"%s\"", 150*time.Second, client.Client.RetryWaitMax)
}
}
func TestHTTPClientFactoryWithEnv(t *testing.T) {
// env
conf := map[string]string{
"address": "http://127.0.0.1:8888/foo",
"update_method": "BLAH",
"lock_address": "http://127.0.0.1:8888/bar",
"lock_method": "BLIP",
"unlock_address": "http://127.0.0.1:8888/baz",
"unlock_method": "BLOOP",
"username": "user",
"password": "pass",
"retry_max": "999",
"retry_wait_min": "15",
"retry_wait_max": "150",
}
defer testWithEnv(t, "TF_HTTP_ADDRESS", conf["address"])()
defer testWithEnv(t, "TF_HTTP_UPDATE_METHOD", conf["update_method"])()
defer testWithEnv(t, "TF_HTTP_LOCK_ADDRESS", conf["lock_address"])()
defer testWithEnv(t, "TF_HTTP_UNLOCK_ADDRESS", conf["unlock_address"])()
defer testWithEnv(t, "TF_HTTP_LOCK_METHOD", conf["lock_method"])()
defer testWithEnv(t, "TF_HTTP_UNLOCK_METHOD", conf["unlock_method"])()
defer testWithEnv(t, "TF_HTTP_USERNAME", conf["username"])()
defer testWithEnv(t, "TF_HTTP_PASSWORD", conf["password"])()
defer testWithEnv(t, "TF_HTTP_RETRY_MAX", conf["retry_max"])()
defer testWithEnv(t, "TF_HTTP_RETRY_WAIT_MIN", conf["retry_wait_min"])()
defer testWithEnv(t, "TF_HTTP_RETRY_WAIT_MAX", conf["retry_wait_max"])()
b := backend.TestBackendConfig(t, New(), nil).(*Backend)
client := b.client
if client == nil {
t.Fatal("Unexpected failure, EnvDefaultFunc")
}
if client.UpdateMethod != "BLAH" {
t.Fatalf("Expected update_method \"%s\", got \"%s\"", "BLAH", client.UpdateMethod)
}
if client.LockURL.String() != conf["lock_address"] || client.LockMethod != "BLIP" {
t.Fatalf("Unexpected lock_address \"%s\" vs \"%s\" or lock_method \"%s\" vs \"%s\"", client.LockURL.String(),
conf["lock_address"], client.LockMethod, conf["lock_method"])
}
if client.UnlockURL.String() != conf["unlock_address"] || client.UnlockMethod != "BLOOP" {
t.Fatalf("Unexpected unlock_address \"%s\" vs \"%s\" or unlock_method \"%s\" vs \"%s\"", client.UnlockURL.String(),
conf["unlock_address"], client.UnlockMethod, conf["unlock_method"])
}
if client.Username != "user" || client.Password != "pass" {
t.Fatalf("Unexpected username \"%s\" vs \"%s\" or password \"%s\" vs \"%s\"", client.Username, conf["username"],
client.Password, conf["password"])
}
if client.Client.RetryMax != 999 {
t.Fatalf("Expected retry_max \"%d\", got \"%d\"", 999, client.Client.RetryMax)
}
if client.Client.RetryWaitMin != 15*time.Second {
t.Fatalf("Expected retry_wait_min \"%s\", got \"%s\"", 15*time.Second, client.Client.RetryWaitMin)
}
if client.Client.RetryWaitMax != 150*time.Second {
t.Fatalf("Expected retry_wait_max \"%s\", got \"%s\"", 150*time.Second, client.Client.RetryWaitMax)
}
}
// testWithEnv sets an environment variable and returns a deferable func to clean up
func testWithEnv(t *testing.T, key string, value string) func() {
if err := os.Setenv(key, value); err != nil {
t.Fatalf("err: %v", err)
}
return func() {
if err := os.Unsetenv(key); err != nil {
t.Fatalf("err: %v", err)
}
}
}

41
website/docs/backends/types/http.html.md
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@ -43,25 +43,28 @@ data "terraform_remote_state" "foo" {
## Configuration variables
The following configuration options are supported:
The following configuration options / environment variables are supported:
* `address` - (Required) The address of the REST endpoint
* `update_method` - (Optional) HTTP method to use when updating state.
Defaults to `POST`.
* `lock_address` - (Optional) The address of the lock REST endpoint.
Defaults to disabled.
* `lock_method` - (Optional) The HTTP method to use when locking.
Defaults to `LOCK`.
* `unlock_address` - (Optional) The address of the unlock REST endpoint.
Defaults to disabled.
* `unlock_method` - (Optional) The HTTP method to use when unlocking.
Defaults to `UNLOCK`.
* `username` - (Optional) The username for HTTP basic authentication
* `password` - (Optional) The password for HTTP basic authentication
* `address` / `TF_HTTP_ADDRESS` - (Required) The address of the REST endpoint
* `update_method` / `TF_HTTP_UPDATE_METHOD` - (Optional) HTTP method to use
when updating state. Defaults to `POST`.
* `lock_address` / `TF_HTTP_LOCK_ADDRESS` - (Optional) The address of the lock
REST endpoint. Defaults to disabled.
* `lock_method` / `TF_HTTP_LOCK_METHOD` - (Optional) The HTTP method to use
when locking. Defaults to `LOCK`.
* `unlock_address` / `TF_HTTP_UNLOCK_ADDRESS` - (Optional) The address of the
unlock REST endpoint. Defaults to disabled.
* `unlock_method` / `TF_HTTP_UNLOCK_METHOD` - (Optional) The HTTP method to use
when unlocking. Defaults to `UNLOCK`.
* `username` / `TF_HTTP_USERNAME` - (Optional) The username for HTTP basic
authentication
* `password` / `TF_HTTP_PASSWORD` - (Optional) The password for HTTP basic
authentication
* `skip_cert_verification` - (Optional) Whether to skip TLS verification.
Defaults to `false`.
* `retry_max` – (Optional) The number of HTTP request retries. Defaults to `2`.
* `retry_wait_min` – (Optional) The minimum time in seconds to wait between HTTP request attempts.
Defaults to `1`.
* `retry_wait_max` – (Optional) The maximum time in seconds to wait between HTTP request attempts.
Defaults to `30`.
* `retry_max` / `TF_HTTP_RETRY_MAX` – (Optional) The number of HTTP request
retries. Defaults to `2`.
* `retry_wait_min` / `TF_HTTP_RETRY_WAIT_MIN` – (Optional) The minimum time in
seconds to wait between HTTP request attempts. Defaults to `1`.
* `retry_wait_max` / `TF_HTTP_RETRY_WAIT_MAX` – (Optional) The maximum time in
seconds to wait between HTTP request attempts. Defaults to `30`.

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