coreos-cloudinit: bump to v1.4.1

docs: fix typo with etcd2 env vars

Documentation/cloud-config.md

@@ -39,7 +39,7 @@ CoreOS tries to conform to each platform's native method to provide user data. E
 
 ### coreos
 
-#### etcd
+#### etcd (deprecated. see etcd2)
 
 The `coreos.etcd.*` parameters will be translated to a partial systemd unit acting as an etcd configuration file.
 If the platform environment supports the templating feature of coreos-cloudinit it is possible to automate etcd configuration with the `$private_ipv4` and `$public_ipv4` fields. For example, the following cloud-config document...
@@ -49,15 +49,15 @@ If the platform environment supports the templating feature of coreos-cloudinit
 
 coreos:
   etcd:
-      name: node001
-      # generate a new token for each unique cluster from https://discovery.etcd.io/new
-      discovery: https://discovery.etcd.io/<token>
-      # multi-region and multi-cloud deployments need to use $public_ipv4
-      addr: $public_ipv4:4001
-      peer-addr: $private_ipv4:7001
+    name: node001
+    # generate a new token for each unique cluster from https://discovery.etcd.io/new
+    discovery: https://discovery.etcd.io/<token>
+    # multi-region and multi-cloud deployments need to use $public_ipv4
+    addr: $public_ipv4:4001
+    peer-addr: $private_ipv4:7001
 ```
 
-...will generate a systemd unit drop-in like this:
+...will generate a systemd unit drop-in for etcd.service with the following contents:
 
 ```yaml
 [Service]
@@ -71,11 +71,51 @@ For more information about the available configuration parameters, see the [etcd
 
 _Note: The `$private_ipv4` and `$public_ipv4` substitution variables referenced in other documents are only supported on Amazon EC2, Google Compute Engine, OpenStack, Rackspace, DigitalOcean, and Vagrant._
 
-[etcd-config]: https://github.com/coreos/etcd/blob/master/Documentation/configuration.md
+[etcd-config]: https://github.com/coreos/etcd/blob/9fa3bea5a22265151f0d5063ce38a79c5b5d0271/Documentation/configuration.md
+
+#### etcd2
+
+The `coreos.etcd2.*` parameters will be translated to a partial systemd unit acting as an etcd configuration file.
+If the platform environment supports the templating feature of coreos-cloudinit it is possible to automate etcd configuration with the `$private_ipv4` and `$public_ipv4` fields. When generating a [discovery token](https://discovery.etcd.io/new?size=3), set the `size` parameter, since etcd uses this to determine if all members have joined the cluster. After the cluster is bootstrapped, it can grow or shrink from this configured size.
+
+For example, the following cloud-config document...
+
+```yaml
+#cloud-config
+
+coreos:
+  etcd2:
+    # generate a new token for each unique cluster from https://discovery.etcd.io/new?size=3
+    discovery: https://discovery.etcd.io/<token>
+    # multi-region and multi-cloud deployments need to use $public_ipv4
+    advertise-client-urls: http://$public_ipv4:2379
+    initial-advertise-peer-urls: http://$private_ipv4:2380
+    # listen on both the official ports and the legacy ports
+    # legacy ports can be omitted if your application doesn't depend on them
+    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
+    listen-peer-urls: http://$private_ipv4:2380,http://$private_ipv4:7001
+```
+
+...will generate a systemd unit drop-in for etcd2.service with the following contents:
+
+```yaml
+[Service]
+Environment="ETCD_DISCOVERY=https://discovery.etcd.io/<token>"
+Environment="ETCD_ADVERTISE_CLIENT_URLS=http://203.0.113.29:2379"
+Environment="ETCD_INITIAL_ADVERTISE_PEER_URLS=http://192.0.2.13:2380"
+Environment="ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379,http://0.0.0.0:4001"
+Environment="ETCD_LISTEN_PEER_URLS=http://192.0.2.13:2380,http://192.0.2.13:7001"
+```
+
+For more information about the available configuration parameters, see the [etcd documentation][etcd-config].
+
+_Note: The `$private_ipv4` and `$public_ipv4` substitution variables referenced in other documents are only supported on Amazon EC2, Google Compute Engine, OpenStack, Rackspace, DigitalOcean, and Vagrant._
+
+[etcd-config]: https://github.com/coreos/etcd/blob/86e616c6e974828fc9119c1eb0f6439577a9ce0b/Documentation/configuration.md
 
 #### fleet
 
-The `coreos.fleet.*` parameters work very similarly to `coreos.etcd.*`, and allow for the configuration of fleet through environment variables. For example, the following cloud-config document...
+The `coreos.fleet.*` parameters work very similarly to `coreos.etcd2.*`, and allow for the configuration of fleet through environment variables. For example, the following cloud-config document...
 
 ```yaml
 #cloud-config
@@ -100,7 +140,7 @@ For more information on fleet configuration, see the [fleet documentation][fleet
 
 #### flannel
 
-The `coreos.flannel.*` parameters also work very similarly to `coreos.etcd.*`
+The `coreos.flannel.*` parameters also work very similarly to `coreos.etcd2.*`
 and `coreos.fleet.*`. They can be used to set environment variables for
 flanneld. For example, the following cloud-config...
 
@@ -120,11 +160,12 @@ Environment="FLANNELD_ETCD_PREFIX=/coreos.com/network2"
 ```
 
 List of flannel configuration parameters:
+
 - **etcd_endpoints**: Comma separated list of etcd endpoints
 - **etcd_cafile**: Path to CA file used for TLS communication with etcd
 - **etcd_certfile**: Path to certificate file used for TLS communication with etcd
 - **etcd_keyfile**: Path to private key file used for TLS communication with etcd
-- **etcd_prefix**: Etcd prefix path to be used for flannel keys
+- **etcd_prefix**: etcd prefix path to be used for flannel keys
 - **ip_masq**: Install IP masquerade rules for traffic outside of flannel subnet
 - **subnet_file**: Path to flannel subnet file to write out
 - **interface**: Interface (name or IP) that should be used for inter-host communication
@@ -241,14 +282,14 @@ coreos:
             Environment=DOCKER_OPTS='--insecure-registry="10.0.1.0/24"'
 ```
 
-Start the built-in `etcd` and `fleet` services:
+Start the built-in `etcd2` and `fleet` services:
 
 ```yaml
 #cloud-config
 
 coreos:
   units:
-    - name: etcd.service
+    - name: etcd2.service
       command: start
     - name: fleet.service
       command: start
@@ -298,6 +339,7 @@ All but the `passwd` and `ssh-authorized-keys` fields will be ignored if the use
 - **coreos-ssh-import-url**: Authorize SSH keys imported from a url endpoint.
 - **system**: Create the user as a system user. No home directory will be created.
 - **no-log-init**: Boolean. Skip initialization of lastlog and faillog databases.
+- **shell**: User's login shell.
 
 The following fields are not yet implemented:
 

config/config.go

@@ -37,6 +37,7 @@ type CloudConfig struct {
 
 type CoreOS struct {
 	Etcd      Etcd      `yaml:"etcd"`
+	Etcd2     Etcd2     `yaml:"etcd2"`
 	Flannel   Flannel   `yaml:"flannel"`
 	Fleet     Fleet     `yaml:"fleet"`
 	Locksmith Locksmith `yaml:"locksmith"`

config/config_test.go

@@ -374,6 +374,7 @@ users:
     no_user_group: true
     system: y
     no_log_init: True
+    shell: /bin/sh
 `
 	cfg, err := NewCloudConfig(contents)
 	if err != nil {
@@ -441,6 +442,10 @@ users:
 	if !user.NoLogInit {
 		t.Errorf("Failed to parse no_log_init field")
 	}
+
+	if user.Shell != "/bin/sh" {
+		t.Errorf("Failed to parse shell field, got %q", user.Shell)
+	}
 }
 
 func TestCloudConfigUsersGithubUser(t *testing.T) {

config/etcd.go

@@ -16,7 +16,7 @@ package config
 
 type Etcd struct {
 	Addr                     string  `yaml:"addr"                          env:"ETCD_ADDR"`
-	AdvertiseClientURLs      string  `yaml:"advertise_client_urls"         env:"ETCD_ADVERTISE_CLIENT_URLS"`
+	AdvertiseClientURLs      string  `yaml:"advertise_client_urls"         env:"ETCD_ADVERTISE_CLIENT_URLS"       deprecated:"etcd2 options no longer work for etcd"`
 	BindAddr                 string  `yaml:"bind_addr"                     env:"ETCD_BIND_ADDR"`
 	CAFile                   string  `yaml:"ca_file"                       env:"ETCD_CA_FILE"`
 	CertFile                 string  `yaml:"cert_file"                     env:"ETCD_CERT_FILE"`
@@ -26,26 +26,26 @@ type Etcd struct {
 	CorsOrigins              string  `yaml:"cors"                          env:"ETCD_CORS"`
 	DataDir                  string  `yaml:"data_dir"                      env:"ETCD_DATA_DIR"`
 	Discovery                string  `yaml:"discovery"                     env:"ETCD_DISCOVERY"`
-	DiscoveryFallback        string  `yaml:"discovery_fallback"            env:"ETCD_DISCOVERY_FALLBACK"`
-	DiscoverySRV             string  `yaml:"discovery_srv"                 env:"ETCD_DISCOVERY_SRV"`
-	DiscoveryProxy           string  `yaml:"discovery_proxy"               env:"ETCD_DISCOVERY_PROXY"`
-	ElectionTimeout          int     `yaml:"election_timeout"              env:"ETCD_ELECTION_TIMEOUT"`
-	ForceNewCluster          bool    `yaml:"force_new_cluster"             env:"ETCD_FORCE_NEW_CLUSTER"`
+	DiscoveryFallback        string  `yaml:"discovery_fallback"            env:"ETCD_DISCOVERY_FALLBACK"          deprecated:"etcd2 options no longer work for etcd"`
+	DiscoverySRV             string  `yaml:"discovery_srv"                 env:"ETCD_DISCOVERY_SRV"               deprecated:"etcd2 options no longer work for etcd"`
+	DiscoveryProxy           string  `yaml:"discovery_proxy"               env:"ETCD_DISCOVERY_PROXY"             deprecated:"etcd2 options no longer work for etcd"`
+	ElectionTimeout          int     `yaml:"election_timeout"              env:"ETCD_ELECTION_TIMEOUT"            deprecated:"etcd2 options no longer work for etcd"`
+	ForceNewCluster          bool    `yaml:"force_new_cluster"             env:"ETCD_FORCE_NEW_CLUSTER"           deprecated:"etcd2 options no longer work for etcd"`
 	GraphiteHost             string  `yaml:"graphite_host"                 env:"ETCD_GRAPHITE_HOST"`
-	HeartbeatInterval        int     `yaml:"heartbeat_interval"            env:"ETCD_HEARTBEAT_INTERVAL"`
+	HeartbeatInterval        int     `yaml:"heartbeat_interval"            env:"ETCD_HEARTBEAT_INTERVAL"          deprecated:"etcd2 options no longer work for etcd"`
 	HTTPReadTimeout          float64 `yaml:"http_read_timeout"             env:"ETCD_HTTP_READ_TIMEOUT"`
 	HTTPWriteTimeout         float64 `yaml:"http_write_timeout"            env:"ETCD_HTTP_WRITE_TIMEOUT"`
-	InitialAdvertisePeerURLs string  `yaml:"initial_advertise_peer_urls"   env:"ETCD_INITIAL_ADVERTISE_PEER_URLS"`
-	InitialCluster           string  `yaml:"initial_cluster"               env:"ETCD_INITIAL_CLUSTER"`
-	InitialClusterState      string  `yaml:"initial_cluster_state"         env:"ETCD_INITIAL_CLUSTER_STATE"`
-	InitialClusterToken      string  `yaml:"initial_cluster_token"         env:"ETCD_INITIAL_CLUSTER_TOKEN"`
+	InitialAdvertisePeerURLs string  `yaml:"initial_advertise_peer_urls"   env:"ETCD_INITIAL_ADVERTISE_PEER_URLS" deprecated:"etcd2 options no longer work for etcd"`
+	InitialCluster           string  `yaml:"initial_cluster"               env:"ETCD_INITIAL_CLUSTER"             deprecated:"etcd2 options no longer work for etcd"`
+	InitialClusterState      string  `yaml:"initial_cluster_state"         env:"ETCD_INITIAL_CLUSTER_STATE"       deprecated:"etcd2 options no longer work for etcd"`
+	InitialClusterToken      string  `yaml:"initial_cluster_token"         env:"ETCD_INITIAL_CLUSTER_TOKEN"       deprecated:"etcd2 options no longer work for etcd"`
 	KeyFile                  string  `yaml:"key_file"                      env:"ETCD_KEY_FILE"`
-	ListenClientURLs         string  `yaml:"listen_client_urls"            env:"ETCD_LISTEN_CLIENT_URLS"`
-	ListenPeerURLs           string  `yaml:"listen_peer_urls"              env:"ETCD_LISTEN_PEER_URLS"`
+	ListenClientURLs         string  `yaml:"listen_client_urls"            env:"ETCD_LISTEN_CLIENT_URLS"          deprecated:"etcd2 options no longer work for etcd"`
+	ListenPeerURLs           string  `yaml:"listen_peer_urls"              env:"ETCD_LISTEN_PEER_URLS"            deprecated:"etcd2 options no longer work for etcd"`
 	MaxResultBuffer          int     `yaml:"max_result_buffer"             env:"ETCD_MAX_RESULT_BUFFER"`
 	MaxRetryAttempts         int     `yaml:"max_retry_attempts"            env:"ETCD_MAX_RETRY_ATTEMPTS"`
-	MaxSnapshots             int     `yaml:"max_snapshots"                 env:"ETCD_MAX_SNAPSHOTS"`
-	MaxWALs                  int     `yaml:"max_wals"                      env:"ETCD_MAX_WALS"`
+	MaxSnapshots             int     `yaml:"max_snapshots"                 env:"ETCD_MAX_SNAPSHOTS"               deprecated:"etcd2 options no longer work for etcd"`
+	MaxWALs                  int     `yaml:"max_wals"                      env:"ETCD_MAX_WALS"                    deprecated:"etcd2 options no longer work for etcd"`
 	Name                     string  `yaml:"name"                          env:"ETCD_NAME"`
 	PeerAddr                 string  `yaml:"peer_addr"                     env:"ETCD_PEER_ADDR"`
 	PeerBindAddr             string  `yaml:"peer_bind_addr"                env:"ETCD_PEER_BIND_ADDR"`
@@ -56,7 +56,7 @@ type Etcd struct {
 	PeerKeyFile              string  `yaml:"peer_key_file"                 env:"ETCD_PEER_KEY_FILE"`
 	Peers                    string  `yaml:"peers"                         env:"ETCD_PEERS"`
 	PeersFile                string  `yaml:"peers_file"                    env:"ETCD_PEERS_FILE"`
-	Proxy                    string  `yaml:"proxy"                         env:"ETCD_PROXY"`
+	Proxy                    string  `yaml:"proxy"                         env:"ETCD_PROXY"                       deprecated:"etcd2 options no longer work for etcd"`
 	RetryInterval            float64 `yaml:"retry_interval"                env:"ETCD_RETRY_INTERVAL"`
 	Snapshot                 bool    `yaml:"snapshot"                      env:"ETCD_SNAPSHOT"`
 	SnapshotCount            int     `yaml:"snapshot_count"                env:"ETCD_SNAPSHOTCOUNT"`

config/etcd2.go

@@ -0,0 +1,44 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// 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 config
+
+type Etcd2 struct {
+	AdvertiseClientURLs      string `yaml:"advertise_client_urls"         env:"ETCD_ADVERTISE_CLIENT_URLS"`
+	CAFile                   string `yaml:"ca_file"                       env:"ETCD_CA_FILE"`
+	CertFile                 string `yaml:"cert_file"                     env:"ETCD_CERT_FILE"`
+	CorsOrigins              string `yaml:"cors"                          env:"ETCD_CORS"`
+	DataDir                  string `yaml:"data_dir"                      env:"ETCD_DATA_DIR"`
+	Discovery                string `yaml:"discovery"                     env:"ETCD_DISCOVERY"`
+	DiscoveryFallback        string `yaml:"discovery_fallback"            env:"ETCD_DISCOVERY_FALLBACK"`
+	DiscoverySRV             string `yaml:"discovery_srv"                 env:"ETCD_DISCOVERY_SRV"`
+	DiscoveryProxy           string `yaml:"discovery_proxy"               env:"ETCD_DISCOVERY_PROXY"`
+	ElectionTimeout          int    `yaml:"election_timeout"              env:"ETCD_ELECTION_TIMEOUT"`
+	HeartbeatInterval        int    `yaml:"heartbeat_interval"            env:"ETCD_HEARTBEAT_INTERVAL"`
+	InitialAdvertisePeerURLs string `yaml:"initial_advertise_peer_urls"   env:"ETCD_INITIAL_ADVERTISE_PEER_URLS"`
+	InitialCluster           string `yaml:"initial_cluster"               env:"ETCD_INITIAL_CLUSTER"`
+	InitialClusterState      string `yaml:"initial_cluster_state"         env:"ETCD_INITIAL_CLUSTER_STATE"`
+	InitialClusterToken      string `yaml:"initial_cluster_token"         env:"ETCD_INITIAL_CLUSTER_TOKEN"`
+	KeyFile                  string `yaml:"key_file"                      env:"ETCD_KEY_FILE"`
+	ListenClientURLs         string `yaml:"listen_client_urls"            env:"ETCD_LISTEN_CLIENT_URLS"`
+	ListenPeerURLs           string `yaml:"listen_peer_urls"              env:"ETCD_LISTEN_PEER_URLS"`
+	MaxSnapshots             int    `yaml:"max_snapshots"                 env:"ETCD_MAX_SNAPSHOTS"`
+	MaxWALs                  int    `yaml:"max_wals"                      env:"ETCD_MAX_WALS"`
+	Name                     string `yaml:"name"                          env:"ETCD_NAME"`
+	PeerCAFile               string `yaml:"peer_ca_file"                  env:"ETCD_PEER_CA_FILE"`
+	PeerCertFile             string `yaml:"peer_cert_file"                env:"ETCD_PEER_CERT_FILE"`
+	PeerKeyFile              string `yaml:"peer_key_file"                 env:"ETCD_PEER_KEY_FILE"`
+	Proxy                    string `yaml:"proxy"                         env:"ETCD_PROXY"`
+	SnapshotCount            int    `yaml:"snapshot_count"                env:"ETCD_SNAPSHOTCOUNT"`
+}

config/user.go

@@ -18,9 +18,9 @@ type User struct {
 	Name                 string   `yaml:"name"`
 	PasswordHash         string   `yaml:"passwd"`
 	SSHAuthorizedKeys    []string `yaml:"ssh_authorized_keys"`
-	SSHImportGithubUser  string   `yaml:"coreos_ssh_import_github"`
-	SSHImportGithubUsers []string `yaml:"coreos_ssh_import_github_users"`
-	SSHImportURL         string   `yaml:"coreos_ssh_import_url"`
+	SSHImportGithubUser  string   `yaml:"coreos_ssh_import_github"       deprecated:"trying to fetch from a remote endpoint introduces too many intermittent errors"`
+	SSHImportGithubUsers []string `yaml:"coreos_ssh_import_github_users" deprecated:"trying to fetch from a remote endpoint introduces too many intermittent errors"`
+	SSHImportURL         string   `yaml:"coreos_ssh_import_url"          deprecated:"trying to fetch from a remote endpoint introduces too many intermittent errors"`
 	GECOS                string   `yaml:"gecos"`
 	Homedir              string   `yaml:"homedir"`
 	NoCreateHome         bool     `yaml:"no_create_home"`
@@ -29,4 +29,5 @@ type User struct {
 	NoUserGroup          bool     `yaml:"no_user_group"`
 	System               bool     `yaml:"system"`
 	NoLogInit            bool     `yaml:"no_log_init"`
+	Shell                string   `yaml:"shell"`
 }

config/validate/rules.go

@@ -57,9 +57,9 @@ func checkEncoding(cfg node, report *Report) {
 			continue
 		}
 
-		c := f.Child("contents")
+		c := f.Child("content")
 		if _, err := config.DecodeContent(c.String(), e.String()); err != nil {
-			report.Error(c.line, fmt.Sprintf("contents cannot be decoded as %q", e.String()))
+			report.Error(c.line, fmt.Sprintf("content cannot be decoded as %q", e.String()))
 		}
 	}
 }
@@ -82,6 +82,9 @@ func checkNodeStructure(n, g node, r *Report) {
 	case reflect.Struct:
 		for _, cn := range n.children {
 			if cg := g.Child(cn.name); cg.IsValid() {
+				if msg := cg.field.Tag.Get("deprecated"); msg != "" {
+					r.Warning(cn.line, fmt.Sprintf("deprecated key %q (%s)", cn.name, msg))
+				}
 				checkNodeStructure(cn, cg, r)
 			} else {
 				r.Warning(cn.line, fmt.Sprintf("unrecognized key %q", cn.name))

config/validate/rules_test.go

@@ -60,27 +60,27 @@ func TestCheckEncoding(t *testing.T) {
 	}{
 		{},
 		{
-			config: "write_files:\n  - encoding: base64\n    contents: aGVsbG8K",
+			config: "write_files:\n  - encoding: base64\n    content: aGVsbG8K",
 		},
 		{
-			config: "write_files:\n  - contents: !!binary aGVsbG8K",
+			config: "write_files:\n  - content: !!binary aGVsbG8K",
 		},
 		{
-			config:  "write_files:\n  - encoding: base64\n    contents: !!binary aGVsbG8K",
-			entries: []Entry{{entryError, `contents cannot be decoded as "base64"`, 3}},
+			config:  "write_files:\n  - encoding: base64\n    content: !!binary aGVsbG8K",
+			entries: []Entry{{entryError, `content cannot be decoded as "base64"`, 3}},
 		},
 		{
-			config: "write_files:\n  - encoding: base64\n    contents: !!binary YUdWc2JHOEsK",
+			config: "write_files:\n  - encoding: base64\n    content: !!binary YUdWc2JHOEsK",
 		},
 		{
-			config: "write_files:\n  - encoding: gzip\n    contents: !!binary H4sIAOC3tVQAA8tIzcnJ5wIAIDA6NgYAAAA=",
+			config: "write_files:\n  - encoding: gzip\n    content: !!binary H4sIAOC3tVQAA8tIzcnJ5wIAIDA6NgYAAAA=",
 		},
 		{
-			config: "write_files:\n  - encoding: gzip+base64\n    contents: H4sIAOC3tVQAA8tIzcnJ5wIAIDA6NgYAAAA=",
+			config: "write_files:\n  - encoding: gzip+base64\n    content: H4sIAOC3tVQAA8tIzcnJ5wIAIDA6NgYAAAA=",
 		},
 		{
-			config:  "write_files:\n  - encoding: custom\n    contents: hello",
-			entries: []Entry{{entryError, `contents cannot be decoded as "custom"`, 3}},
+			config:  "write_files:\n  - encoding: custom\n    content: hello",
+			entries: []Entry{{entryError, `content cannot be decoded as "custom"`, 3}},
 		},
 	}
 
@@ -119,6 +119,15 @@ func TestCheckStructure(t *testing.T) {
 			config: "coreos:\n  etcd:\n    discovery: good",
 		},
 
+		// Test for deprecated keys
+		{
+			config: "coreos:\n  etcd:\n    addr: hi",
+		},
+		{
+			config:  "coreos:\n  etcd:\n    proxy: hi",
+			entries: []Entry{{entryWarning, "deprecated key \"proxy\" (etcd2 options no longer work for etcd)", 3}},
+		},
+
 		// Test for error on list of nodes
 		{
 			config: "coreos:\n  units:\n    - hello\n    - goodbye",

coreos-cloudinit.go

@@ -39,7 +39,7 @@ import (
 )
 
 const (
-	version               = "1.3.0"
+	version               = "1.4.1"
 	datasourceInterval    = 100 * time.Millisecond
 	datasourceMaxInterval = 30 * time.Second
 	datasourceTimeout     = 5 * time.Minute

datasource/configdrive/configdrive.go

@@ -60,7 +60,7 @@ func (cd *configDrive) FetchMetadata() (metadata datasource.Metadata, err error)
 		} `json:"network_config"`
 	}
 
-	if data, err = cd.tryReadFile(path.Join(cd.openstackVersionRoot(), "meta_data.json")); err != nil {
+	if data, err = cd.tryReadFile(path.Join(cd.openstackVersionRoot(), "meta_data.json")); err != nil || len(data) == 0 {
 		return
 	}
 	if err = json.Unmarshal([]byte(data), &m); err != nil {
@@ -69,7 +69,9 @@ func (cd *configDrive) FetchMetadata() (metadata datasource.Metadata, err error)
 
 	metadata.SSHPublicKeys = m.SSHAuthorizedKeyMap
 	metadata.Hostname = m.Hostname
-	metadata.NetworkConfig, err = cd.tryReadFile(path.Join(cd.openstackRoot(), m.NetworkConfig.ContentPath))
+	if m.NetworkConfig.ContentPath != "" {
+		metadata.NetworkConfig, err = cd.tryReadFile(path.Join(cd.openstackRoot(), m.NetworkConfig.ContentPath))
+	}
 
 	return
 }

datasource/configdrive/configdrive_test.go

@@ -31,19 +31,22 @@ func TestFetchMetadata(t *testing.T) {
 	}{
 		{
 			root:  "/",
-			files: test.MockFilesystem{"/openstack/latest/meta_data.json": `{"ignore": "me"}`},
+			files: test.NewMockFilesystem(test.File{Path: "/openstack/latest/meta_data.json", Contents: ""}),
+		},
+		{
+			root:  "/",
+			files: test.NewMockFilesystem(test.File{Path: "/openstack/latest/meta_data.json", Contents: `{"ignore": "me"}`}),
 		},
 		{
 			root:     "/",
-			files:    test.MockFilesystem{"/openstack/latest/meta_data.json": `{"hostname": "host"}`},
+			files:    test.NewMockFilesystem(test.File{Path: "/openstack/latest/meta_data.json", Contents: `{"hostname": "host"}`}),
 			metadata: datasource.Metadata{Hostname: "host"},
 		},
 		{
 			root: "/media/configdrive",
-			files: test.MockFilesystem{
-				"/media/configdrive/openstack/latest/meta_data.json": `{"hostname": "host", "network_config": {"content_path": "config_file.json"}, "public_keys":{"1": "key1", "2": "key2"}}`,
-				"/media/configdrive/openstack/config_file.json":      "make it work",
-			},
+			files: test.NewMockFilesystem(test.File{Path: "/media/configdrive/openstack/latest/meta_data.json", Contents: `{"hostname": "host", "network_config": {"content_path": "config_file.json"}, "public_keys":{"1": "key1", "2": "key2"}}`},
+				test.File{Path: "/media/configdrive/openstack/config_file.json", Contents: "make it work"},
+			),
 			metadata: datasource.Metadata{
 				Hostname:      "host",
 				NetworkConfig: []byte("make it work"),
@@ -57,10 +60,10 @@ func TestFetchMetadata(t *testing.T) {
 		cd := configDrive{tt.root, tt.files.ReadFile}
 		metadata, err := cd.FetchMetadata()
 		if err != nil {
-			t.Fatalf("bad error for %q: want %v, got %q", tt, nil, err)
+			t.Fatalf("bad error for %+v: want %v, got %q", tt, nil, err)
 		}
 		if !reflect.DeepEqual(tt.metadata, metadata) {
-			t.Fatalf("bad metadata for %q: want %#v, got %#v", tt, tt.metadata, metadata)
+			t.Fatalf("bad metadata for %+v: want %#v, got %#v", tt, tt.metadata, metadata)
 		}
 	}
 }
@@ -74,27 +77,27 @@ func TestFetchUserdata(t *testing.T) {
 	}{
 		{
 			"/",
-			test.MockFilesystem{},
+			test.NewMockFilesystem(),
 			"",
 		},
 		{
 			"/",
-			test.MockFilesystem{"/openstack/latest/user_data": "userdata"},
+			test.NewMockFilesystem(test.File{Path: "/openstack/latest/user_data", Contents: "userdata"}),
 			"userdata",
 		},
 		{
 			"/media/configdrive",
-			test.MockFilesystem{"/media/configdrive/openstack/latest/user_data": "userdata"},
+			test.NewMockFilesystem(test.File{Path: "/media/configdrive/openstack/latest/user_data", Contents: "userdata"}),
 			"userdata",
 		},
 	} {
 		cd := configDrive{tt.root, tt.files.ReadFile}
 		userdata, err := cd.FetchUserdata()
 		if err != nil {
-			t.Fatalf("bad error for %q: want %v, got %q", tt, nil, err)
+			t.Fatalf("bad error for %+v: want %v, got %q", tt, nil, err)
 		}
 		if string(userdata) != tt.userdata {
-			t.Fatalf("bad userdata for %q: want %q, got %q", tt, tt.userdata, userdata)
+			t.Fatalf("bad userdata for %+v: want %q, got %q", tt, tt.userdata, userdata)
 		}
 	}
 }

datasource/metadata/cloudsigma/server_context.go

@@ -108,7 +108,9 @@ func (scs *serverContextService) FetchMetadata() (metadata datasource.Metadata,
 	}
 
 	metadata.SSHPublicKeys = map[string]string{}
-	if key, ok := inputMetadata.Meta["ssh_public_key"]; ok {
+	// CloudSigma uses an empty string, rather than no string,
+	// to represent the lack of a SSH key
+	if key, _ := inputMetadata.Meta["ssh_public_key"]; len(key) > 0 {
 		splitted := strings.Split(key, " ")
 		metadata.SSHPublicKeys[splitted[len(splitted)-1]] = key
 	}

datasource/metadata/cloudsigma/server_context_test.go

@@ -43,6 +43,27 @@ func (f *fakeCepgoClient) FetchRaw(key string) ([]byte, error) {
 	return f.raw, f.err
 }
 
+func TestServerContextWithEmptyPublicSSHKey(t *testing.T) {
+	client := new(fakeCepgoClient)
+	scs := NewServerContextService()
+	scs.client = client
+	client.raw = []byte(`{
+		"meta": {
+			"base64_fields": "cloudinit-user-data",
+			"cloudinit-user-data": "I2Nsb3VkLWNvbmZpZwoKaG9zdG5hbWU6IGNvcmVvczE=",
+			"ssh_public_key": ""
+		}
+	}`)
+	metadata, err := scs.FetchMetadata()
+	if err != nil {
+		t.Error(err.Error())
+	}
+
+	if len(metadata.SSHPublicKeys) != 0 {
+		t.Error("There should be no Public SSH Keys provided")
+	}
+}
+
 func TestServerContextFetchMetadata(t *testing.T) {
 	client := new(fakeCepgoClient)
 	scs := NewServerContextService()

datasource/test/filesystem.go

@@ -0,0 +1,57 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// 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 test
+
+import (
+	"fmt"
+	"os"
+	"path"
+)
+
+type MockFilesystem map[string]File
+
+type File struct {
+	Path      string
+	Contents  string
+	Directory bool
+}
+
+func (m MockFilesystem) ReadFile(filename string) ([]byte, error) {
+	if f, ok := m[path.Clean(filename)]; ok {
+		if f.Directory {
+			return nil, fmt.Errorf("read %s: is a directory", filename)
+		}
+		return []byte(f.Contents), nil
+	}
+	return nil, os.ErrNotExist
+}
+
+func NewMockFilesystem(files ...File) MockFilesystem {
+	fs := MockFilesystem{}
+	for _, file := range files {
+		fs[file.Path] = file
+
+		// Create the directories leading up to the file
+		p := path.Dir(file.Path)
+		for p != "/" && p != "." {
+			if f, ok := fs[p]; ok && !f.Directory {
+				panic(fmt.Sprintf("%q already exists and is not a directory (%#v)", p, f))
+			}
+			fs[p] = File{Path: p, Directory: true}
+			p = path.Dir(p)
+		}
+	}
+	return fs
+}

datasource/test/filesystem_test.go

@@ -0,0 +1,115 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// 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 test
+
+import (
+	"errors"
+	"os"
+	"reflect"
+	"testing"
+)
+
+func TestReadFile(t *testing.T) {
+	tests := []struct {
+		filesystem MockFilesystem
+
+		filename string
+		contents string
+		err      error
+	}{
+		{
+			filename: "dne",
+			err:      os.ErrNotExist,
+		},
+		{
+			filesystem: MockFilesystem{
+				"exists": File{Contents: "hi"},
+			},
+			filename: "exists",
+			contents: "hi",
+		},
+		{
+			filesystem: MockFilesystem{
+				"dir": File{Directory: true},
+			},
+			filename: "dir",
+			err:      errors.New("read dir: is a directory"),
+		},
+	}
+
+	for i, tt := range tests {
+		contents, err := tt.filesystem.ReadFile(tt.filename)
+		if tt.contents != string(contents) {
+			t.Errorf("bad contents (test %d): want %q, got %q", i, tt.contents, string(contents))
+		}
+		if !reflect.DeepEqual(tt.err, err) {
+			t.Errorf("bad error (test %d): want %v, got %v", i, tt.err, err)
+		}
+	}
+}
+
+func TestNewMockFilesystem(t *testing.T) {
+	tests := []struct {
+		files []File
+
+		filesystem MockFilesystem
+	}{
+		{
+			filesystem: MockFilesystem{},
+		},
+		{
+			files: []File{File{Path: "file"}},
+			filesystem: MockFilesystem{
+				"file": File{Path: "file"},
+			},
+		},
+		{
+			files: []File{File{Path: "/file"}},
+			filesystem: MockFilesystem{
+				"/file": File{Path: "/file"},
+			},
+		},
+		{
+			files: []File{File{Path: "/dir/file"}},
+			filesystem: MockFilesystem{
+				"/dir":      File{Path: "/dir", Directory: true},
+				"/dir/file": File{Path: "/dir/file"},
+			},
+		},
+		{
+			files: []File{File{Path: "/dir/dir/file"}},
+			filesystem: MockFilesystem{
+				"/dir":          File{Path: "/dir", Directory: true},
+				"/dir/dir":      File{Path: "/dir/dir", Directory: true},
+				"/dir/dir/file": File{Path: "/dir/dir/file"},
+			},
+		},
+		{
+			files: []File{File{Path: "/dir/dir/dir", Directory: true}},
+			filesystem: MockFilesystem{
+				"/dir":         File{Path: "/dir", Directory: true},
+				"/dir/dir":     File{Path: "/dir/dir", Directory: true},
+				"/dir/dir/dir": File{Path: "/dir/dir/dir", Directory: true},
+			},
+		},
+	}
+
+	for i, tt := range tests {
+		filesystem := NewMockFilesystem(tt.files...)
+		if !reflect.DeepEqual(tt.filesystem, filesystem) {
+			t.Errorf("bad filesystem (test %d): want %#v, got %#v", i, tt.filesystem, filesystem)
+		}
+	}
+}

datasource/waagent/waagent_test.go

@@ -31,19 +31,19 @@ func TestFetchMetadata(t *testing.T) {
 	}{
 		{
 			root:  "/",
-			files: test.MockFilesystem{},
+			files: test.NewMockFilesystem(),
 		},
 		{
 			root:  "/",
-			files: test.MockFilesystem{"/SharedConfig.xml": ""},
+			files: test.NewMockFilesystem(test.File{Path: "/SharedConfig.xml", Contents: ""}),
 		},
 		{
 			root:  "/var/lib/waagent",
-			files: test.MockFilesystem{"/var/lib/waagent/SharedConfig.xml": ""},
+			files: test.NewMockFilesystem(test.File{Path: "/var/lib/waagent/SharedConfig.xml", Contents: ""}),
 		},
 		{
 			root: "/var/lib/waagent",
-			files: test.MockFilesystem{"/var/lib/waagent/SharedConfig.xml": `<?xml version="1.0" encoding="utf-8"?>
+			files: test.NewMockFilesystem(test.File{Path: "/var/lib/waagent/SharedConfig.xml", Contents: `<?xml version="1.0" encoding="utf-8"?>
 <SharedConfig version="1.0.0.0" goalStateIncarnation="1">
   <Deployment name="c8f9e4c9c18948e1bebf57c5685da756" guid="{1d10394f-c741-4a1a-a6bb-278f213c5a5e}" incarnation="0" isNonCancellableTopologyChangeEnabled="false">
     <Service name="core-test-1" guid="{00000000-0000-0000-0000-000000000000}" />
@@ -79,7 +79,7 @@ func TestFetchMetadata(t *testing.T) {
       </InputEndpoints>
     </Instance>
   </Instances>
-</SharedConfig>`},
+</SharedConfig>`}),
 			metadata: datasource.Metadata{
 				PrivateIPv4: net.ParseIP("100.73.202.64"),
 				PublicIPv4:  net.ParseIP("191.239.39.77"),
@@ -89,10 +89,10 @@ func TestFetchMetadata(t *testing.T) {
 		a := waagent{tt.root, tt.files.ReadFile}
 		metadata, err := a.FetchMetadata()
 		if err != nil {
-			t.Fatalf("bad error for %q: want %v, got %q", tt, nil, err)
+			t.Fatalf("bad error for %+v: want %v, got %q", tt, nil, err)
 		}
 		if !reflect.DeepEqual(tt.metadata, metadata) {
-			t.Fatalf("bad metadata for %q: want %#v, got %#v", tt, tt.metadata, metadata)
+			t.Fatalf("bad metadata for %+v: want %#v, got %#v", tt, tt.metadata, metadata)
 		}
 	}
 }
@@ -104,21 +104,21 @@ func TestFetchUserdata(t *testing.T) {
 	}{
 		{
 			"/",
-			test.MockFilesystem{},
+			test.NewMockFilesystem(),
 		},
 		{
 			"/",
-			test.MockFilesystem{"/CustomData": ""},
+			test.NewMockFilesystem(test.File{Path: "/CustomData", Contents: ""}),
 		},
 		{
 			"/var/lib/waagent/",
-			test.MockFilesystem{"/var/lib/waagent/CustomData": ""},
+			test.NewMockFilesystem(test.File{Path: "/var/lib/waagent/CustomData", Contents: ""}),
 		},
 	} {
 		a := waagent{tt.root, tt.files.ReadFile}
 		_, err := a.FetchUserdata()
 		if err != nil {
-			t.Fatalf("bad error for %q: want %v, got %q", tt, nil, err)
+			t.Fatalf("bad error for %+v: want %v, got %q", tt, nil, err)
 		}
 	}
 }

initialize/config.go

@@ -135,6 +135,7 @@ func Apply(cfg config.CloudConfig, ifaces []network.InterfaceGenerator, env *Env
 
 	for _, ccu := range []CloudConfigUnit{
 		system.Etcd{Etcd: cfg.CoreOS.Etcd},
+		system.Etcd2{Etcd2: cfg.CoreOS.Etcd2},
 		system.Fleet{Fleet: cfg.CoreOS.Fleet},
 		system.Locksmith{Locksmith: cfg.CoreOS.Locksmith},
 		system.Update{Update: cfg.CoreOS.Update, ReadConfig: system.DefaultReadConfig},

system/etcd2.go

@@ -12,17 +12,26 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package test
+package system
 
 import (
-	"os"
+	"github.com/coreos/coreos-cloudinit/config"
 )
 
-type MockFilesystem map[string]string
-
-func (m MockFilesystem) ReadFile(filename string) ([]byte, error) {
-	if contents, ok := m[filename]; ok {
-		return []byte(contents), nil
-	}
-	return nil, os.ErrNotExist
+// Etcd2 is a top-level structure which embeds its underlying configuration,
+// config.Etcd2, and provides the system-specific Unit().
+type Etcd2 struct {
+	config.Etcd2
+}
+
+// Units creates a Unit file drop-in for etcd, using any configured options.
+func (ee Etcd2) Units() []Unit {
+	return []Unit{{config.Unit{
+		Name:    "etcd2.service",
+		Runtime: true,
+		DropIns: []config.UnitDropIn{{
+			Name:    "20-cloudinit.conf",
+			Content: serviceContents(ee.Etcd2),
+		}},
+	}}}
 }

system/user.go

@@ -72,6 +72,10 @@ func CreateUser(u *config.User) error {
 		args = append(args, "--no-log-init")
 	}
 
+	if u.Shell != "" {
+		args = append(args, "--shell", u.Shell)
+	}
+
 	args = append(args, u.Name)
 
 	output, err := exec.Command("useradd", args...).CombinedOutput()

test

@@ -24,6 +24,7 @@ declare -a TESTPKGS=(
 	datasource/metadata/digitalocean
 	datasource/metadata/ec2
 	datasource/proc_cmdline
+	datasource/test
 	datasource/url
 	datasource/waagent
 	initialize