Impose order on test scripts.

The simple test script has gotten out of control. Shard this script into
different pieces and attempt to impose order on overall test structure. This
change helps lay some of the foundations for future improvements.

 * The runsc/test directories are moved into just test/.
 * The runsc/test/testutil package is split into logical pieces.
 * The scripts/ directory contains new top-level targets.
 * Each test is now responsible for building targets it requires.
 * The install functionality is moved into `runsc` itself for simplicity.
 * The existing kokoro run_tests.sh file now just calls all (can be split).

After this change is merged,  I will create multiple distinct workflows for
Kokoro, one for each of the scripts currently targeted by `run_tests.sh` today,
which should dramatically reduce the time-to-run for the Kokoro tests, and
provides a better foundation for further improvements to the infrastructure.

PiperOrigin-RevId: 267081397

6 files changed, 204 insertions, 0 deletions

diff --git a/test/root/testdata/BUILD b/test/root/testdata/BUILD
new file mode 100644
index 000000000..14c19ef1e
--- /dev/null
+++ b/test/root/testdata/BUILD
@@ -0,0 +1,18 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+package(licenses = ["notice"])
+
+go_library(
+    name = "testdata",
+    srcs = [
+        "busybox.go",
+        "containerd_config.go",
+        "httpd.go",
+        "httpd_mount_paths.go",
+        "sandbox.go",
+    ],
+    importpath = "gvisor.dev/gvisor/test/root/testdata",
+    visibility = [
+        "//visibility:public",
+    ],
+)
diff --git a/test/root/testdata/busybox.go b/test/root/testdata/busybox.go
new file mode 100644
index 000000000..e4dbd2843
--- /dev/null
+++ b/test/root/testdata/busybox.go
@@ -0,0 +1,32 @@
+// Copyright 2018 The gVisor 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 testdata
+
+// MountOverSymlink is a JSON config for a container that /etc/resolv.conf is a
+// symlink to /tmp/resolv.conf.
+var MountOverSymlink = `
+{
+        "metadata": {
+                "name": "busybox"
+        },
+        "image": {
+                "image": "k8s.gcr.io/busybox"
+        },
+        "command": [
+                "sleep",
+                "1000"
+        ]
+}
+`
diff --git a/test/root/testdata/containerd_config.go b/test/root/testdata/containerd_config.go
new file mode 100644
index 000000000..e12f1ec88
--- /dev/null
+++ b/test/root/testdata/containerd_config.go
@@ -0,0 +1,39 @@
+// Copyright 2018 The gVisor 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 testdata contains data required for root tests.
+package testdata
+
+import "fmt"
+
+// containerdConfigTemplate is a .toml config for containerd. It contains a
+// formatting verb so the runtime field can be set via fmt.Sprintf.
+const containerdConfigTemplate = `
+disabled_plugins = ["restart"]
+[plugins.linux]
+  runtime = "%s"
+  runtime_root = "/tmp/test-containerd/runsc"
+  shim = "/usr/local/bin/gvisor-containerd-shim"
+  shim_debug = true
+
+[plugins.cri.containerd.runtimes.runsc]
+  runtime_type = "io.containerd.runtime.v1.linux"
+  runtime_engine = "%s"
+`
+
+// ContainerdConfig returns a containerd config file with the specified
+// runtime.
+func ContainerdConfig(runtime string) string {
+	return fmt.Sprintf(containerdConfigTemplate, runtime, runtime)
+}
diff --git a/test/root/testdata/httpd.go b/test/root/testdata/httpd.go
new file mode 100644
index 000000000..45d5e33d4
--- /dev/null
+++ b/test/root/testdata/httpd.go
@@ -0,0 +1,32 @@
+// Copyright 2018 The gVisor 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 testdata
+
+// Httpd is a JSON config for an httpd container.
+const Httpd = `
+{
+  "metadata": {
+    "name": "httpd"
+  },
+  "image":{
+    "image": "httpd"
+  },
+  "mounts": [
+  ],
+  "linux": {
+  },
+  "log_path": "httpd.log"
+}
+`
diff --git a/test/root/testdata/httpd_mount_paths.go b/test/root/testdata/httpd_mount_paths.go
new file mode 100644
index 000000000..ac3f4446a
--- /dev/null
+++ b/test/root/testdata/httpd_mount_paths.go
@@ -0,0 +1,53 @@
+// Copyright 2018 The gVisor 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 testdata
+
+// HttpdMountPaths is a JSON config for an httpd container with additional
+// mounts.
+const HttpdMountPaths = `
+{
+  "metadata": {
+    "name": "httpd"
+  },
+  "image":{
+    "image": "httpd"
+  },
+  "mounts": [
+      {
+        "container_path": "/var/run/secrets/kubernetes.io/serviceaccount",
+        "host_path": "/var/lib/kubelet/pods/82bae206-cdf5-11e8-b245-8cdcd43ac064/volumes/kubernetes.io~secret/default-token-2rpfx",
+        "readonly": true
+      },
+      {
+        "container_path": "/etc/hosts",
+        "host_path": "/var/lib/kubelet/pods/82bae206-cdf5-11e8-b245-8cdcd43ac064/etc-hosts",
+        "readonly": false
+      },
+      {
+        "container_path": "/dev/termination-log",
+        "host_path": "/var/lib/kubelet/pods/82bae206-cdf5-11e8-b245-8cdcd43ac064/containers/httpd/d1709580",
+        "readonly": false
+      },
+      {
+        "container_path": "/usr/local/apache2/htdocs/test",
+        "host_path": "/var/lib/kubelet/pods/82bae206-cdf5-11e8-b245-8cdcd43ac064",
+        "readonly": true
+      }
+  ],
+  "linux": {
+  },
+  "log_path": "httpd.log"
+}
+`
diff --git a/test/root/testdata/sandbox.go b/test/root/testdata/sandbox.go
new file mode 100644
index 000000000..0db210370
--- /dev/null
+++ b/test/root/testdata/sandbox.go
@@ -0,0 +1,30 @@
+// Copyright 2018 The gVisor 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 testdata
+
+// Sandbox is a default JSON config for a sandbox.
+const Sandbox = `
+{
+    "metadata": {
+        "name": "default-sandbox",
+        "namespace": "default",
+        "attempt": 1,
+        "uid": "hdishd83djaidwnduwk28bcsb"
+    },
+    "linux": {
+    },
+    "log_directory": "/tmp"
+}
+`