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agent: install key command implemented

This commit is contained in:
Ryan Uber 2014-09-08 23:25:38 -07:00
parent 3a68d9e506
commit 7b6f3d6dcc
4 changed files with 113 additions and 24 deletions
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21
command/agent/agent.go
View File

@ -756,5 +756,24 @@ func (a *Agent) ListKeysWAN() (*serf.KeyResponse, error) {
km := a.server.KeyManagerWAN()
return km.ListKeys()
}
return nil, nil
return nil, fmt.Errorf("WAN keyring not available on client node")
}
// InstallKeyWAN installs a new WAN gossip encryption key on server nodes
func (a *Agent) InstallKeyWAN(key string) (*serf.KeyResponse, error) {
if a.server != nil {
km := a.server.KeyManagerWAN()
return km.InstallKey(key)
}
return nil, fmt.Errorf("WAN keyring not available on client node")
}
// InstallKeyLAN installs a new LAN gossip encryption key on all nodes
func (a *Agent) InstallKeyLAN(key string) (*serf.KeyResponse, error) {
if a.server != nil {
km := a.server.KeyManagerLAN()
return km.InstallKey(key)
}
km := a.client.KeyManagerLAN()
return km.InstallKey(key)
}

50
command/agent/rpc.go
View File

@ -111,6 +111,10 @@ type joinResponse struct {
Num int32
}
type keyRequest struct {
Key string
}
type keyResponse struct {
Messages map[string]string
NumNodes int
@ -389,19 +393,13 @@ func (i *AgentRPC) handleRequest(client *rpcClient, reqHeader *requestHeader) er
case reloadCommand:
return i.handleReload(client, seq)
case listKeysLANCommand:
return i.handleListKeysLAN(client, seq)
case listKeysLANCommand, listKeysWANCommand:
return i.handleListKeys(client, seq, command)
case listKeysWANCommand:
return i.handleListKeysWAN(client, seq)
case installKeyLANCommand, installKeyWANCommand:
return i.handleInstallKey(client, seq, command)
/*
case installKeyLANCommand:
return i.handleInstallKeyLAN(client, seq)
case installKeyWANCommand:
return i.handleInstallKeyWAN(client, seq)
case useKeyLANCommand:
return i.handleUseKeyLAN(client, seq)
@ -625,8 +623,16 @@ func (i *AgentRPC) handleReload(client *rpcClient, seq uint64) error {
return client.Send(&resp, nil)
}
func (i *AgentRPC) handleListKeysLAN(client *rpcClient, seq uint64) error {
queryResp, err := i.agent.ListKeysLAN()
func (i *AgentRPC) handleListKeys(client *rpcClient, seq uint64, cmd string) error {
var queryResp *serf.KeyResponse
var err error
switch cmd {
case listKeysWANCommand:
queryResp, err = i.agent.ListKeysWAN()
default:
queryResp, err = i.agent.ListKeysLAN()
}
header := responseHeader{
Seq: seq,
@ -644,15 +650,29 @@ func (i *AgentRPC) handleListKeysLAN(client *rpcClient, seq uint64) error {
return client.Send(&header, &resp)
}
func (i *AgentRPC) handleListKeysWAN(client *rpcClient, seq uint64) error {
queryResp, err := i.agent.ListKeysWAN()
func (i *AgentRPC) handleInstallKey(client *rpcClient, seq uint64, cmd string) error {
var req keyRequest
var resp keyResponse
var queryResp *serf.KeyResponse
var err error
if err = client.dec.Decode(&req); err != nil {
return fmt.Errorf("decode failed: %v", err)
}
switch cmd {
case installKeyWANCommand:
queryResp, err = i.agent.InstallKeyWAN(req.Key)
default:
queryResp, err = i.agent.InstallKeyLAN(req.Key)
}
header := responseHeader{
Seq: seq,
Error: errToString(err),
}
resp := keyResponse{
resp = keyResponse{
Messages: queryResp.Messages,
Keys: queryResp.Keys,
NumResp: queryResp.NumResp,

26
command/agent/rpc_client.go
View File

@ -198,6 +198,32 @@ func (c *RPCClient) ListKeysWAN() (map[string]int, int, map[string]string, error
return resp.Keys, resp.NumNodes, resp.Messages, err
}
func (c *RPCClient) InstallKeyWAN(key string) (map[string]string, error) {
header := requestHeader{
Command: installKeyWANCommand,
Seq: c.getSeq(),
}
req := keyRequest{key}
resp := new(keyResponse)
err := c.genericRPC(&header, &req, resp)
return resp.Messages, err
}
func (c *RPCClient) InstallKeyLAN(key string) (map[string]string, error) {
header := requestHeader{
Command: installKeyLANCommand,
Seq: c.getSeq(),
}
req := keyRequest{key}
resp := new(keyResponse)
err := c.genericRPC(&header, &req, resp)
return resp.Messages, err
}
// Leave is used to trigger a graceful leave and shutdown
func (c *RPCClient) Leave() error {
header := requestHeader{

36
command/keys.go
View File

@ -40,6 +40,10 @@ func (c *KeysCommand) Run(args []string) int {
Ui: c.Ui,
}
var out []string
var failures map[string]string
var err error
// Only accept a single argument
found := listKeys
for _, arg := range []string{installKey, useKey, removeKey} {
@ -68,21 +72,20 @@ func (c *KeysCommand) Run(args []string) int {
var keys map[string]int
var numNodes int
var messages map[string]string
var err error
var out []string
if wan {
keys, numNodes, messages, err = client.ListKeysWAN()
keys, numNodes, failures, err = client.ListKeysWAN()
} else {
keys, numNodes, messages, err = client.ListKeysLAN()
keys, numNodes, failures, err = client.ListKeysLAN()
}
if err != nil {
for node, msg := range messages {
if len(failures) > 0 {
for node, msg := range failures {
out = append(out, fmt.Sprintf("failed: %s | %s", node, msg))
}
c.Ui.Error(columnize.SimpleFormat(out))
}
c.Ui.Error("")
c.Ui.Error(fmt.Sprintf("Failed gathering member keys: %s", err))
return 1
@ -100,6 +103,27 @@ func (c *KeysCommand) Run(args []string) int {
}
if installKey != "" {
if wan {
c.Ui.Info("Installing new WAN gossip encryption key...")
failures, err = client.InstallKeyWAN(installKey)
} else {
c.Ui.Info("Installing new LAN gossip encryption key...")
failures, err = client.InstallKeyLAN(installKey)
}
if err != nil {
if len(failures) > 0 {
for node, msg := range failures {
out = append(out, fmt.Sprintf("failed: %s | %s", node, msg))
}
c.Ui.Error(columnize.SimpleFormat(out))
}
c.Ui.Error("")
c.Ui.Error(fmt.Sprintf("Error installing key: %s", err))
return 1
}
c.Ui.Info("Successfully installed key!")
return 0
}