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roleassignments.go
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roleassignments.go
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package cloud
import (
"context"
"time"
"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-01-01-preview/authorization"
"github.com/Azure/go-autorest/autorest/to"
"github.com/google/uuid"
"github.com/pkg/errors"
"monis.app/mlog"
)
const (
roleAssignmentCreateRetryCount = 7
roleAssignmentCreateRetryDelay = 5 * time.Second
)
// CreateRoleAssignment creates a role assignment.
func (c *AzureClient) CreateRoleAssignment(ctx context.Context, scope, roleName, principalID string) (authorization.RoleAssignment, error) {
var result authorization.RoleAssignment
roleDefinitionID, err := c.GetRoleDefinitionIDByName(ctx, "", roleName)
if err != nil {
return result, errors.Wrapf(err, "failed to get role definition id for role %s", roleName)
}
mlog.Debug("Creating role assignment",
"principalID", principalID,
"role", roleName,
)
parameters := authorization.RoleAssignmentCreateParameters{
RoleAssignmentProperties: &authorization.RoleAssignmentProperties{
RoleDefinitionID: roleDefinitionID.ID,
PrincipalID: to.StringPtr(principalID),
},
}
// Adding retries to handle the propagation delay of the service principal.
// Trying to create role assignment immediately after service principal is created
// results in "PrincipalNotFound" error.
for i := 0; i < roleAssignmentCreateRetryCount; i++ {
if result, err = c.roleAssignmentsClient.Create(ctx, scope, uuid.New().String(), parameters); err == nil {
return result, nil
}
if IsAlreadyExists(err) {
mlog.Warning("Role assignment already exists", "principalID", principalID, "role", roleName)
return result, err
}
time.Sleep(roleAssignmentCreateRetryDelay)
}
return result, err
}
// DeleteRoleAssignment deletes a role assignment.
func (c *AzureClient) DeleteRoleAssignment(ctx context.Context, roleAssignmentID string) (authorization.RoleAssignment, error) {
mlog.Debug("Deleting role assignment", "id", roleAssignmentID)
return c.roleAssignmentsClient.DeleteByID(ctx, roleAssignmentID)
}