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swift: Add support for id based keystone v3 auth parameters

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This adds support for the following environment variables, which were
previously missing:

OS_USER_ID            User ID for keystone v3 authentication
OS_USER_DOMAIN_ID     User domain ID for keystone v3 authentication
OS_PROJECT_DOMAIN_ID  Project domain ID for keystone v3 authentication
OS_TRUST_ID           Trust ID for keystone v3 authentication
This commit is contained in:
Michael Eischer 2020-12-11 19:09:32 +01:00
parent 7facc8ccc1
commit 1d69341e88
5 changed files with 38 additions and 9 deletions
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11
changelog/unreleased/issue-3147 Normal file
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@ -0,0 +1,11 @@
Enhancement: Support further environment variables for swift authentication
The swift backend now supports the following additional environment variables
to pass authentication details to restic: `OS_USER_ID`, `OS_USER_DOMAIN_ID`,
`OS_PROJECT_DOMAIN_ID` and `OS_TRUST_ID`.
Depending on the openrc configuration file these might be required when the
user and project domains differ.
https://github.com/restic/restic/issues/3147
https://github.com/restic/restic/pull/3158

4
doc/030_preparing_a_new_repo.rst
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@ -375,10 +375,14 @@ the naming convention of those variables follows the official Python Swift clien
$ export OS_AUTH_URL=<MY_AUTH_URL>
$ export OS_REGION_NAME=<MY_REGION_NAME>
$ export OS_USERNAME=<MY_USERNAME>
$ export OS_USER_ID=<MY_USER_ID>
$ export OS_PASSWORD=<MY_PASSWORD>
$ export OS_USER_DOMAIN_NAME=<MY_DOMAIN_NAME>
$ export OS_USER_DOMAIN_ID=<MY_DOMAIN_ID>
$ export OS_PROJECT_NAME=<MY_PROJECT_NAME>
$ export OS_PROJECT_DOMAIN_NAME=<MY_PROJECT_DOMAIN_NAME>
$ export OS_PROJECT_DOMAIN_ID=<MY_PROJECT_DOMAIN_ID>
$ export OS_TRUST_ID=<MY_TRUST_ID>
# For keystone v3 application credential authentication (application credential id)
$ export OS_AUTH_URL=<MY_AUTH_URL>

4
doc/040_backup.rst
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@ -466,13 +466,17 @@ environment variables. The following lists these environment variables:
OS_AUTH_URL Auth URL for keystone authentication
OS_REGION_NAME Region name for keystone authentication
OS_USERNAME Username for keystone authentication
OS_USER_ID User ID for keystone v3 authentication
OS_PASSWORD Password for keystone authentication
OS_TENANT_ID Tenant ID for keystone v2 authentication
OS_TENANT_NAME Tenant name for keystone v2 authentication
OS_USER_DOMAIN_NAME User domain name for keystone authentication
OS_USER_DOMAIN_ID User domain ID for keystone v3 authentication
OS_PROJECT_NAME Project name for keystone authentication
OS_PROJECT_DOMAIN_NAME Project domain name for keystone authentication
OS_PROJECT_DOMAIN_ID Project domain ID for keystone v3 authentication
OS_TRUST_ID Trust ID for keystone v3 authentication
OS_APPLICATION_CREDENTIAL_ID Application Credential ID (keystone v3)
OS_APPLICATION_CREDENTIAL_NAME Application Credential Name (keystone v3)

7
internal/backend/swift/config.go
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@ -11,13 +11,16 @@ import (
// Config contains basic configuration needed to specify swift location for a swift server
type Config struct {
UserName string
UserID string
Domain string
DomainID string
APIKey string
AuthURL string
Region string
Tenant string
TenantID string
TenantDomain string
TenantDomainID string
TrustID string
StorageURL string
@ -88,9 +91,13 @@ func ApplyEnvironment(prefix string, cfg interface{}) error {
{&c.AuthURL, prefix + "OS_AUTH_URL"},
// v3 specific
{&c.UserID, prefix + "OS_USER_ID"},
{&c.Domain, prefix + "OS_USER_DOMAIN_NAME"},
{&c.DomainID, prefix + "OS_USER_DOMAIN_ID"},
{&c.Tenant, prefix + "OS_PROJECT_NAME"},
{&c.TenantDomain, prefix + "OS_PROJECT_DOMAIN_NAME"},
{&c.TenantDomainID, prefix + "OS_PROJECT_DOMAIN_ID"},
{&c.TrustID, prefix + "OS_TRUST_ID"},
// v2 specific
{&c.TenantID, prefix + "OS_TENANT_ID"},

3
internal/backend/swift/swift.go
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@ -42,13 +42,16 @@ func Open(cfg Config, rt http.RoundTripper) (restic.Backend, error) {
be := &beSwift{
conn: &swift.Connection{
UserName: cfg.UserName,
UserId: cfg.UserID,
Domain: cfg.Domain,
DomainId: cfg.DomainID,
ApiKey: cfg.APIKey,
AuthUrl: cfg.AuthURL,
Region: cfg.Region,
Tenant: cfg.Tenant,
TenantId: cfg.TenantID,
TenantDomain: cfg.TenantDomain,
TenantDomainId: cfg.TenantDomainID,
TrustId: cfg.TrustID,
StorageUrl: cfg.StorageURL,
AuthToken: cfg.AuthToken,