open-consul/agent/config.go
Frank Schröder fa22ad4573 config: add generic method to translate between CamelCase and snake_case (#3557)
* doc: document discrepancy between id and CheckID

* doc: document enable_tag_override change

* config: add TranslateKeys helper

TranslateKeys makes it easier to map between different representations
of internal structures. It allows to recursively map alias keys to
canonical keys in structured maps.

* config: use TranslateKeys for config file

This also adds support for 'enabletagoverride' and removes
the need for a separate CheckID alias field.

* config: remove dead code

* agent: use TranslateKeys for FixupCheckType

* agent: translate enable_tag_override during service registration

* doc: add '.hcl' as valid extension

* config: map ScriptArgs to args

* config: add comment for TranslateKeys
2017-10-10 16:40:59 -07:00

97 lines
2.1 KiB
Go

package agent
import (
"errors"
"fmt"
"strings"
"time"
"github.com/hashicorp/consul/agent/config"
)
var errInvalidHeaderFormat = errors.New("agent: invalid format of 'header' field")
func FixupCheckType(raw interface{}) error {
rawMap, ok := raw.(map[string]interface{})
if !ok {
return nil
}
// see https://github.com/hashicorp/consul/pull/3557 why we need this
// and why we should get rid of it.
config.TranslateKeys(rawMap, map[string]string{
"deregister_critical_service_after": "DeregisterCriticalServiceAfter",
"docker_container_id": "DockerContainerID",
"tls_skip_verify": "TLSSkipVerify",
"service_id": "ServiceID",
})
parseDuration := func(v interface{}) (time.Duration, error) {
if v == nil {
return 0, nil
}
switch x := v.(type) {
case time.Duration:
return x, nil
case float64:
return time.Duration(x), nil
case string:
return time.ParseDuration(x)
default:
return 0, fmt.Errorf("invalid format")
}
}
parseHeaderMap := func(v interface{}) (map[string][]string, error) {
if v == nil {
return nil, nil
}
vm, ok := v.(map[string]interface{})
if !ok {
return nil, errInvalidHeaderFormat
}
m := map[string][]string{}
for k, vv := range vm {
vs, ok := vv.([]interface{})
if !ok {
return nil, errInvalidHeaderFormat
}
for _, vs := range vs {
s, ok := vs.(string)
if !ok {
return nil, errInvalidHeaderFormat
}
m[k] = append(m[k], s)
}
}
return m, nil
}
for k, v := range rawMap {
switch strings.ToLower(k) {
case "header":
h, err := parseHeaderMap(v)
if err != nil {
return fmt.Errorf("invalid %q: %s", k, err)
}
rawMap[k] = h
case "ttl", "interval", "timeout", "deregistercriticalserviceafter":
d, err := parseDuration(v)
if err != nil {
return fmt.Errorf("invalid %q: %v", k, err)
}
rawMap[k] = d
}
}
return nil
}
func ParseMetaPair(raw string) (string, string) {
pair := strings.SplitN(raw, ":", 2)
if len(pair) == 2 {
return pair[0], pair[1]
}
return pair[0], ""
}