portainer/portainer

package registries

import (
    "fmt"
    "net/http"

    portainer "github.com/portainer/portainer/api"
    httperrors "github.com/portainer/portainer/api/http/errors"
    "github.com/portainer/portainer/api/http/security"
    "github.com/portainer/portainer/api/pendingactions/handlers"
    httperror "github.com/portainer/portainer/pkg/libhttp/error"
    "github.com/portainer/portainer/pkg/libhttp/request"
    "github.com/portainer/portainer/pkg/libhttp/response"

    "github.com/rs/zerolog/log"
)

// @id RegistryDelete
// @summary Remove a registry
// @description Remove a registry
// @description **Access policy**: restricted
// @tags registries
// @security ApiKeyAuth
// @security jwt
// @param id path int true "Registry identifier"
// @success 204 "Success"
// @failure 400 "Invalid request"
// @failure 404 "Registry not found"
// @failure 500 "Server error"
// @router /registries/{id} [delete]
func (handler *Handler) registryDelete(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
    securityContext, err := security.RetrieveRestrictedRequestContext(r)
    if err != nil {
        return httperror.InternalServerError("Unable to retrieve info from request context", err)
    }
    if !securityContext.IsAdmin {
        return httperror.Forbidden("Permission denied to delete registry", httperrors.ErrResourceAccessDenied)
    }

    registryID, err := request.RetrieveNumericRouteVariableValue(r, "id")
    if err != nil {
        return httperror.BadRequest("Invalid registry identifier route variable", err)
    }

    registry, err := handler.DataStore.Registry().Read(portainer.RegistryID(registryID))
    if err != nil {
        return httperror.InternalServerError(fmt.Sprintf("Unable to load registry %q from the database", registry.Name), err)
    }

    err = handler.DataStore.Registry().Delete(portainer.RegistryID(registryID))
    if err != nil {
        return httperror.InternalServerError("Unable to remove the registry from the database", err)
    }

    err = handler.deleteKubernetesSecrets(registry)
    if err != nil {
        return httperror.InternalServerError("Unable to delete registry secrets", err)
    }

    return response.Empty(w)
}

func (handler *Handler) deleteKubernetesSecrets(registry *portainer.Registry) error {

    for endpointId, access := range registry.RegistryAccesses {
        if access.Namespaces != nil {
            // Obtain a kubeclient for the endpoint
            endpoint, err := handler.DataStore.Endpoint().Endpoint(endpointId)
            if err != nil {
                // Skip environments that can't be loaded from the DB
                log.Warn().Err(err).Msgf("Unable to load the environment with id %d from the database", endpointId)
                continue
            }

            cli, err := handler.K8sClientFactory.GetKubeClient(endpoint)
            if err != nil {
                // Skip environments that can't get a kubeclient from
                log.Warn().Err(err).Msgf("Unable to get kubernetes client for environment %d", endpointId)
                continue
            }

            failedNamespaces := make([]string, 0)
            for _, ns := range access.Namespaces {
                err = cli.DeleteRegistrySecret(registry.ID, ns)
                if err != nil {
                    failedNamespaces = append(failedNamespaces, ns)
                    log.Warn().Err(err).Msgf("Unable to delete registry secret %q from namespace %q for environment %d. Retrying offline", cli.RegistrySecretName(registry.ID), ns, endpointId)
                }
            }

            if len(failedNamespaces) > 0 {
                handler.PendingActionsService.Create(
                    handlers.NewDeleteK8sRegistrySecrets(portainer.EndpointID(endpointId), registry.ID, failedNamespaces),
                )
            }
        }
    }

    return nil
}