// call this fuction to add nodes
func (c *Config) AddConsulNodes() (err error) {
// iterate over all nodes and take appropriate action
for _, node := range c.Nodes {
var (
request *http.Request
client *http.Client
resp *http.Response
url string
putdata []byte
)
client = &http.Client{
CheckRedirect: nil,
}
url = fmt.Sprintf("http://%s/v1/catalog/register?token=%s", c.Consul, c.Token)
log.Debugf("Attempting to register the service using URL: %s", url)
node.Datacenter = c.Datacenter
//putdata, err := json.MarshalIndent(node, "", " ")
putdata, err := json.Marshal(node)
if err != nil {
log.Fatalf("Unable to create JSON from our structure. This could only be caused by a bug in your yaml: %s", err)
return err
}
log.Debugf("The token data to PUT: %s", string(putdata))
request, err = http.NewRequest("PUT", url, nil)
if err != nil {
log.Warnf("Unable to register the node. Err: %s", err)
return err
}
reqdata := strings.NewReader(string(putdata))
request, err = http.NewRequest("PUT", url, reqdata)
resp, err = client.Do(request)
if err != nil {
log.Fatalf("There was a problem calling the Consul server: %s", err)
return err
}
if resp.StatusCode != 200 {
log.Fatalf("There was a problem calling the Consul server. Response Code %i", resp.StatusCode)
return err
}
}
return err
}
// call this fuction to add nodes
func (c *Config) AddConsulKvPairs() (err error) {
// iterate over all nodes and take appropriate action
for _, pair := range c.KeyValues {
var (
request *http.Request
client *http.Client
resp *http.Response
url string
)
client = &http.Client{
CheckRedirect: nil,
}
url = fmt.Sprintf("http://%s/v1/kv/%s?token=%s", c.Consul, pair.Name, c.Token)
log.Debugf("Attempting to register the service using URL: %s", url)
log.Debugf("The token data to PUT: %s", pair.Value)
request, err = http.NewRequest("PUT", url, nil)
if err != nil {
log.Warnf("Unable to register the node. Err: %s", err)
return err
}
reqdata := strings.NewReader(pair.Value)
request, err = http.NewRequest("PUT", url, reqdata)
resp, err = client.Do(request)
if err != nil {
log.Fatalf("There was a problem calling the Consul server: %s", err)
return err
}
if resp.StatusCode != 200 {
log.Fatalf("There was a problem calling the Consul server. Response Code %i", resp.StatusCode)
return err
}
}
return err
}
// does the logic to set the tokens on the Consul cluster
// if a token is set to be removed, it does the logic to delete
// the token.
func (c *Config) SetConsulACL() (err error) {
// iterate over all tokens and take appropriate action
for _, token := range c.Tokens {
var (
request *http.Request
client *http.Client
resp *http.Response
url string
tok ConsulACL
)
tok = ConsulACL{}
client = &http.Client{
CheckRedirect: nil,
}
tok.ID = token.Token
if token.Remove {
url = fmt.Sprintf("http://%s/v1/acl/destroy/%s?token=%s", c.Consul, tok.ID, c.Token)
log.Debugf("Attempting to destroy an ACL. Using URL: %s", url)
request, err = http.NewRequest("PUT", url, nil)
if err != nil {
log.Warnf("Unable to destroy the ACL, it's possible it was already deleted. %s", err)
}
} else {
url = fmt.Sprintf("http://%s/v1/acl/destroy/%s?token=%s", c.Consul, tok.ID, c.Token)
log.Debugf("Cancel URL: %s", url)
request, err = http.NewRequest("PUT", url, nil)
if err != nil {
log.Fatalf("Unable to issue PUT request to desroy an existing token: %s", url)
return err
}
url = fmt.Sprintf("http://%s/v1/acl/create?token=%s", c.Consul, c.Token)
log.Debugf("Create URL: %s", url)
tok.Name = token.Name
tok.Type = token.Type
tok.Rules, err = c.RulesString(token)
if err != nil {
log.Fatalf("Unable to create JSON string of the rules: %s", err)
return err
}
tokdata, err := json.MarshalIndent(tok, "", " ")
if err != nil {
log.Fatalf("Unable to create JSON from our structure. This could only be caused by a bug in your code: %s", err)
return err
}
log.Debugf("The token data to PUT: %s", string(tokdata))
reqdata := strings.NewReader(string(tokdata))
request, err = http.NewRequest("PUT", url, reqdata)
}
resp, err = client.Do(request)
if err != nil {
log.Fatalf("There was a problem calling the Consul server: %s", err)
return err
}
if resp.StatusCode != 200 {
log.Fatalf("There was a problem calling the Consul server. Response Code %i", resp.StatusCode)
return
}
}
log.Info("Ran all updates against Consul at: ", c.Consul)
return
}