/* Copyright 2019 The Kubernetes Authors. Licensed 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. */ package nodeutils import ( "testing" ) func TestParseSnapshotter(t *testing.T) { // a real, known kind node containerd config config := `disabled_plugins = [] imports = ["/etc/containerd/config.toml"] oom_score = 0 plugin_dir = "" required_plugins = [] root = "/var/lib/containerd" state = "/run/containerd" version = 2 [cgroup] path = "" [debug] address = "" format = "" gid = 0 level = "" uid = 0 [grpc] address = "/run/containerd/containerd.sock" gid = 0 max_recv_message_size = 16777216 max_send_message_size = 16777216 tcp_address = "" tcp_tls_cert = "" tcp_tls_key = "" uid = 0 [metrics] address = "" grpc_histogram = false [plugins] [plugins."io.containerd.gc.v1.scheduler"] deletion_threshold = 0 mutation_threshold = 100 pause_threshold = 0.02 schedule_delay = "0s" startup_delay = "100ms" [plugins."io.containerd.grpc.v1.cri"] disable_apparmor = false disable_cgroup = false disable_hugetlb_controller = true disable_proc_mount = false disable_tcp_service = true enable_selinux = false enable_tls_streaming = false ignore_image_defined_volumes = false max_concurrent_downloads = 3 max_container_log_line_size = 16384 netns_mounts_under_state_dir = false restrict_oom_score_adj = false sandbox_image = "registry.k8s.io/pause:3.7" selinux_category_range = 1024 stats_collect_period = 10 stream_idle_timeout = "4h0m0s" stream_server_address = "127.0.0.1" stream_server_port = "0" systemd_cgroup = false tolerate_missing_hugetlb_controller = true unset_seccomp_profile = "" [plugins."io.containerd.grpc.v1.cri".cni] bin_dir = "/opt/cni/bin" conf_dir = "/etc/cni/net.d" conf_template = "" max_conf_num = 1 [plugins."io.containerd.grpc.v1.cri".containerd] default_runtime_name = "runc" disable_snapshot_annotations = true discard_unpacked_layers = true no_pivot = false snapshotter = "overlayfs" [plugins."io.containerd.grpc.v1.cri".containerd.default_runtime] base_runtime_spec = "" container_annotations = [] pod_annotations = [] privileged_without_host_devices = false runtime_engine = "" runtime_root = "" runtime_type = "" [plugins."io.containerd.grpc.v1.cri".containerd.default_runtime.options] [plugins."io.containerd.grpc.v1.cri".containerd.runtimes] [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc] base_runtime_spec = "/etc/containerd/cri-base.json" container_annotations = [] pod_annotations = [] privileged_without_host_devices = false runtime_engine = "" runtime_root = "" runtime_type = "io.containerd.runc.v2" [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options] [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.test-handler] base_runtime_spec = "" container_annotations = [] pod_annotations = [] privileged_without_host_devices = false runtime_engine = "" runtime_root = "" runtime_type = "io.containerd.runc.v2" [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.test-handler.options] [plugins."io.containerd.grpc.v1.cri".containerd.untrusted_workload_runtime] base_runtime_spec = "" container_annotations = [] pod_annotations = [] privileged_without_host_devices = false runtime_engine = "" runtime_root = "" runtime_type = "" [plugins."io.containerd.grpc.v1.cri".containerd.untrusted_workload_runtime.options] [plugins."io.containerd.grpc.v1.cri".image_decryption] key_model = "node" [plugins."io.containerd.grpc.v1.cri".registry] config_path = "" [plugins."io.containerd.grpc.v1.cri".registry.auths] [plugins."io.containerd.grpc.v1.cri".registry.configs] [plugins."io.containerd.grpc.v1.cri".registry.headers] [plugins."io.containerd.grpc.v1.cri".registry.mirrors] [plugins."io.containerd.grpc.v1.cri".x509_key_pair_streaming] tls_cert_file = "" tls_key_file = "" [plugins."io.containerd.internal.v1.opt"] path = "/opt/containerd" [plugins."io.containerd.internal.v1.restart"] interval = "10s" [plugins."io.containerd.metadata.v1.bolt"] content_sharing_policy = "shared" [plugins."io.containerd.monitor.v1.cgroups"] no_prometheus = false [plugins."io.containerd.runtime.v1.linux"] no_shim = false runtime = "runc" runtime_root = "" shim = "containerd-shim" shim_debug = false [plugins."io.containerd.runtime.v2.task"] platforms = ["linux/amd64"] [plugins."io.containerd.service.v1.diff-service"] default = ["walking"] [plugins."io.containerd.snapshotter.v1.aufs"] root_path = "" [plugins."io.containerd.snapshotter.v1.btrfs"] root_path = "" [plugins."io.containerd.snapshotter.v1.devmapper"] async_remove = false base_image_size = "" pool_name = "" root_path = "" [plugins."io.containerd.snapshotter.v1.native"] root_path = "" [plugins."io.containerd.snapshotter.v1.overlayfs"] root_path = "" [plugins."io.containerd.snapshotter.v1.zfs"] root_path = "" [proxy_plugins] [proxy_plugins.fuse-overlayfs] address = "/run/containerd-fuse-overlayfs.sock" type = "snapshot" [stream_processors] [stream_processors."io.containerd.ocicrypt.decoder.v1.tar"] accepts = ["application/vnd.oci.image.layer.v1.tar+encrypted"] args = ["--decryption-keys-path", "/etc/containerd/ocicrypt/keys"] env = ["OCICRYPT_KEYPROVIDER_CONFIG=/etc/containerd/ocicrypt/ocicrypt_keyprovider.conf"] path = "ctd-decoder" returns = "application/vnd.oci.image.layer.v1.tar" [stream_processors."io.containerd.ocicrypt.decoder.v1.tar.gzip"] accepts = ["application/vnd.oci.image.layer.v1.tar+gzip+encrypted"] args = ["--decryption-keys-path", "/etc/containerd/ocicrypt/keys"] env = ["OCICRYPT_KEYPROVIDER_CONFIG=/etc/containerd/ocicrypt/ocicrypt_keyprovider.conf"] path = "ctd-decoder" returns = "application/vnd.oci.image.layer.v1.tar+gzip" [timeouts] "io.containerd.timeout.shim.cleanup" = "5s" "io.containerd.timeout.shim.load" = "5s" "io.containerd.timeout.shim.shutdown" = "3s" "io.containerd.timeout.task.state" = "2s" [ttrpc] address = "" gid = 0 uid = 0` snapshotter, err := parseSnapshotter(config) if err != nil { t.Fatalf("unexpected error parsing config: %v", err) } if snapshotter != "overlayfs" { t.Fatalf(`unexpected parsed snapshotter: %q, expected "overlayfs"`, snapshotter) } // sanity check parsing an empty config _, err = parseSnapshotter("") if err == nil { t.Fatal("expected error parsing empty config") } // sanity check parsing invalid toml _, err = parseSnapshotter("aaaa") if err == nil { t.Fatal("expected error parsing invalid config") } }