| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <glog/logging.h> |
| |
| #include <stout/os.hpp> |
| |
| #ifdef __linux__ |
| #include "linux/fs.hpp" |
| #endif |
| |
| #include "slave/containerizer/mesos/provisioner/backend.hpp" |
| #include "slave/containerizer/mesos/provisioner/constants.hpp" |
| |
| #ifdef __linux__ |
| #include "slave/containerizer/mesos/provisioner/backends/aufs.hpp" |
| #include "slave/containerizer/mesos/provisioner/backends/bind.hpp" |
| #endif |
| #include "slave/containerizer/mesos/provisioner/backends/copy.hpp" |
| #ifdef __linux__ |
| #include "slave/containerizer/mesos/provisioner/backends/overlay.hpp" |
| #endif |
| |
| using namespace process; |
| |
| using std::string; |
| |
| namespace mesos { |
| namespace internal { |
| namespace slave { |
| |
| hashmap<string, Owned<Backend>> Backend::create(const Flags& flags) |
| { |
| hashmap<string, Try<Owned<Backend>>(*)(const Flags&)> creators; |
| |
| #ifdef __linux__ |
| creators.put(BIND_BACKEND, &BindBackend::create); |
| |
| Try<bool> aufsSupported = fs::supported("aufs"); |
| if (aufsSupported.isError()) { |
| LOG(WARNING) << "Failed to check aufs availability: '" |
| << aufsSupported.error(); |
| } else if (aufsSupported.get()) { |
| creators.put(AUFS_BACKEND, &AufsBackend::create); |
| } |
| |
| Try<bool> overlayfsSupported = fs::supported("overlayfs"); |
| if (overlayfsSupported.isError()) { |
| LOG(WARNING) << "Failed to check overlayfs availability: '" |
| << overlayfsSupported.error(); |
| } else if (overlayfsSupported.get()) { |
| creators.put(OVERLAY_BACKEND, &OverlayBackend::create); |
| } |
| #endif // __linux__ |
| |
| creators.put(COPY_BACKEND, &CopyBackend::create); |
| |
| hashmap<string, Owned<Backend>> backends; |
| |
| foreachkey (const string& name, creators) { |
| Try<Owned<Backend>> backend = creators[name](flags); |
| if (backend.isError()) { |
| LOG(WARNING) << "Failed to create '" << name << "' backend: " |
| << backend.error(); |
| continue; |
| } |
| backends.put(name, backend.get()); |
| } |
| |
| return backends; |
| } |
| |
| } // namespace slave { |
| } // namespace internal { |
| } // namespace mesos { |