85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
package openstack
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import (
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"os"
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"github.com/gophercloud/gophercloud"
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)
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var nilOptions = gophercloud.AuthOptions{}
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/*
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AuthOptionsFromEnv fills out an identity.AuthOptions structure with the
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settings found on the various OpenStack OS_* environment variables.
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The following variables provide sources of truth: OS_AUTH_URL, OS_USERNAME,
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OS_PASSWORD, OS_TENANT_ID, and OS_TENANT_NAME.
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Of these, OS_USERNAME, OS_PASSWORD, and OS_AUTH_URL must have settings,
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or an error will result. OS_TENANT_ID, OS_TENANT_NAME, OS_PROJECT_ID, and
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OS_PROJECT_NAME are optional.
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OS_TENANT_ID and OS_TENANT_NAME are mutually exclusive to OS_PROJECT_ID and
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OS_PROJECT_NAME. If OS_PROJECT_ID and OS_PROJECT_NAME are set, they will
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still be referred as "tenant" in Gophercloud.
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To use this function, first set the OS_* environment variables (for example,
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by sourcing an `openrc` file), then:
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opts, err := openstack.AuthOptionsFromEnv()
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provider, err := openstack.AuthenticatedClient(opts)
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*/
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func AuthOptionsFromEnv() (gophercloud.AuthOptions, error) {
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authURL := os.Getenv("OS_AUTH_URL")
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username := os.Getenv("OS_USERNAME")
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userID := os.Getenv("OS_USERID")
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password := os.Getenv("OS_PASSWORD")
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tenantID := os.Getenv("OS_TENANT_ID")
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tenantName := os.Getenv("OS_TENANT_NAME")
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domainID := os.Getenv("OS_DOMAIN_ID")
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domainName := os.Getenv("OS_DOMAIN_NAME")
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// If OS_PROJECT_ID is set, overwrite tenantID with the value.
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if v := os.Getenv("OS_PROJECT_ID"); v != "" {
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tenantID = v
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}
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// If OS_PROJECT_NAME is set, overwrite tenantName with the value.
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if v := os.Getenv("OS_PROJECT_NAME"); v != "" {
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tenantName = v
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}
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if authURL == "" {
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err := gophercloud.ErrMissingEnvironmentVariable{
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EnvironmentVariable: "OS_AUTH_URL",
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}
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return nilOptions, err
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}
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if username == "" && userID == "" {
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err := gophercloud.ErrMissingAnyoneOfEnvironmentVariables{
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EnvironmentVariables: []string{"OS_USERNAME", "OS_USERID"},
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}
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return nilOptions, err
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}
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if password == "" {
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err := gophercloud.ErrMissingEnvironmentVariable{
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EnvironmentVariable: "OS_PASSWORD",
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}
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return nilOptions, err
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}
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ao := gophercloud.AuthOptions{
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IdentityEndpoint: authURL,
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UserID: userID,
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Username: username,
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Password: password,
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TenantID: tenantID,
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TenantName: tenantName,
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DomainID: domainID,
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DomainName: domainName,
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}
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return ao, nil
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}
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