func NewKV(manifest destiny.Manifest, count int) (kv consul.KV, err error) {
members := manifest.ConsulMembers()
if len(members) != count {
err = fmt.Errorf("expected %d consul members, found %d", count, len(members))
return
}
consulMemberAddresses := []string{}
for _, member := range members {
consulMemberAddresses = append(consulMemberAddresses, member.Address)
}
dataDir, err := ioutil.TempDir("", "consul")
if err != nil {
return
}
configDir, err := ioutil.TempDir("", "consul-config")
if err != nil {
return
}
var encryptKey string
if len(manifest.Properties.Consul.EncryptKeys) > 0 {
key := manifest.Properties.Consul.EncryptKeys[0]
encryptKey = base64.StdEncoding.EncodeToString(pbkdf2.Key([]byte(key), []byte(""), 20000, 16, sha1.New))
}
agent := consul.NewAgent(consul.AgentOptions{
DataDir: dataDir,
RetryJoin: consulMemberAddresses,
ConfigDir: configDir,
Domain: "cf.internal",
Key: manifest.Properties.Consul.AgentKey,
Cert: manifest.Properties.Consul.AgentCert,
CACert: manifest.Properties.Consul.CACert,
Encrypt: encryptKey,
ServerName: "consul agent",
})
agentLocation := "http://127.0.0.1:8500"
kv = consul.NewManagedKV(consul.ManagedKVConfig{
Agent: agent,
KV: consul.NewHTTPKV(agentLocation),
Catalog: consul.NewHTTPCatalog(agentLocation),
})
return
}
func DeployConsulWithInstanceCount(count int, client bosh.Client, config Config) (manifest destiny.Manifest, kv consul.KV, err error) {
guid, err := NewGUID()
if err != nil {
return
}
info, err := client.Info()
if err != nil {
return
}
manifestConfig := destiny.Config{
DirectorUUID: info.UUID,
Name: fmt.Sprintf("consul-%s", guid),
}
switch info.CPI {
case "aws_cpi":
manifestConfig.IAAS = destiny.AWS
if config.AWS.Subnet != "" {
manifestConfig.AWS.Subnet = config.AWS.Subnet
} else {
err = errors.New("AWSSubnet is required for AWS IAAS deployment")
return
}
case "warden_cpi":
manifestConfig.IAAS = destiny.Warden
default:
err = errors.New("unknown infrastructure type")
return
}
manifest = destiny.NewConsul(manifestConfig)
manifest.Jobs[0], manifest.Properties = destiny.SetJobInstanceCount(manifest.Jobs[0], manifest.Networks[0], manifest.Properties, count)
yaml, err := manifest.ToYAML()
if err != nil {
return
}
yaml, err = client.ResolveManifestVersions(yaml)
if err != nil {
return
}
manifest, err = destiny.FromYAML(yaml)
if err != nil {
return
}
err = client.Deploy(yaml)
if err != nil {
return
}
members := manifest.ConsulMembers()
if len(members) != count {
err = fmt.Errorf("expected %d consul members, found %d", count, len(members))
return
}
consulMemberAddresses := []string{}
for _, member := range members {
consulMemberAddresses = append(consulMemberAddresses, member.Address)
}
dataDir, err := ioutil.TempDir("", "consul")
if err != nil {
return
}
configDir, err := ioutil.TempDir("", "consul-config")
if err != nil {
return
}
var encryptKey string
if len(manifest.Properties.Consul.EncryptKeys) > 0 {
encryptKey = manifest.Properties.Consul.EncryptKeys[0]
}
agent := consul.NewAgent(consul.AgentOptions{
DataDir: dataDir,
RetryJoin: consulMemberAddresses,
ConfigDir: configDir,
Domain: "cf.internal",
Key: manifest.Properties.Consul.AgentKey,
Cert: manifest.Properties.Consul.AgentCert,
CACert: manifest.Properties.Consul.CACert,
Encrypt: encryptKey,
ServerName: "consul agent",
})
agentLocation := "http://127.0.0.1:8500"
kv = consul.NewManagedKV(consul.ManagedKVConfig{
Agent: agent,
KV: consul.NewHTTPKV(agentLocation),
Catalog: consul.NewHTTPCatalog(agentLocation),
})
return
}
It("gets the key-value based on the key", func() {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
Expect(req.URL.Path).To(Equal("/v1/kv/some-key"))
Expect(req.Method).To(Equal("GET"))
params, err := url.ParseQuery(req.URL.RawQuery)
Expect(err).NotTo(HaveOccurred())
_, ok := params["raw"]
Expect(ok).To(BeTrue())
w.Write([]byte("some-value"))
}))
kv := consul.NewHTTPKV(server.URL)
value, err := kv.Get("some-key")
Expect(err).NotTo(HaveOccurred())
Expect(value).To(Equal("some-value"))
})
Context("failure cases", func() {
Context("when consul cant find a value based on the key", func() {
It("should return an error", func() {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(http.StatusNotFound)
}))
kv := consul.NewHTTPKV(server.URL)