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gs: support authentication with access token

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In the Google Cloud Storage backend, support specifying access tokens
directly, as an alternative to a credentials file. This is useful when
restic is used non-interactively by some other program that is already
authenticated and eliminates the need to store long lived credentials.

The access token is specified in the GOOGLE_ACCESS_TOKEN environment
variable and takes precedence over GOOGLE_APPLICATION_CREDENTIALS.
This commit is contained in:
Peter Schultz
2020-07-21 19:24:30 +02:00
parent 82c908871d
commit 758b44b9c0
4 changed files with 42 additions and 7 deletions
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10
internal/backend/gs/gs_test.go
View File

@@ -87,7 +87,6 @@ func TestBackendGS(t *testing.T) {
}()
vars := []string{
"GOOGLE_APPLICATION_CREDENTIALS",
"RESTIC_TEST_GS_PROJECT_ID",
"RESTIC_TEST_GS_REPOSITORY",
}
@@ -98,6 +97,10 @@ func TestBackendGS(t *testing.T) {
return
}
}
if os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")+os.Getenv("GOOGLE_ACCESS_TOKEN") == "" {
t.Skipf("environment variable GOOGLE_APPLICATION_CREDENTIALS not set, nor GOOGLE_ACCESS_TOKEN")
return
}
t.Logf("run tests")
newGSTestSuite(t).RunTests(t)
@@ -105,7 +108,6 @@ func TestBackendGS(t *testing.T) {
func BenchmarkBackendGS(t *testing.B) {
vars := []string{
"GOOGLE_APPLICATION_CREDENTIALS",
"RESTIC_TEST_GS_PROJECT_ID",
"RESTIC_TEST_GS_REPOSITORY",
}
@@ -116,6 +118,10 @@ func BenchmarkBackendGS(t *testing.B) {
return
}
}
if os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")+os.Getenv("GOOGLE_ACCESS_TOKEN") == "" {
t.Skipf("environment variable GOOGLE_APPLICATION_CREDENTIALS not set, nor GOOGLE_ACCESS_TOKEN")
return
}
t.Logf("run tests")
newGSTestSuite(t).RunBenchmarks(t)