ba1c1e97d0
This uses the new MetadataService implementation to retrieve values for $private_ipv4 and $public_ipv4 substitutions, instead of using environment variables.
47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
package initialize
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import "encoding/json"
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// ParseMetaData parses a JSON blob in the OpenStack metadata service format, and
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// converts it to a CloudConfig
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func ParseMetaData(contents string) (cfg CloudConfig, err error) {
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var metadata struct {
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SSHAuthorizedKeyMap map[string]string `json:"public_keys"`
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Hostname string `json:"hostname"`
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NetworkConfig struct {
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ContentPath string `json:"content_path"`
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} `json:"network_config"`
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}
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if err = json.Unmarshal([]byte(contents), &metadata); err != nil {
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return
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}
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cfg.SSHAuthorizedKeys = make([]string, 0, len(metadata.SSHAuthorizedKeyMap))
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for _, key := range metadata.SSHAuthorizedKeyMap {
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cfg.SSHAuthorizedKeys = append(cfg.SSHAuthorizedKeys, key)
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}
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cfg.Hostname = metadata.Hostname
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cfg.NetworkConfigPath = metadata.NetworkConfig.ContentPath
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return
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}
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// ExtractIPsFromMetaData parses a JSON blob in the OpenStack metadata service format,
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// and returns a substitution map possibly containing private_ipv4 and public_ipv4 addresses
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func ExtractIPsFromMetadata(contents []byte) (map[string]string, error) {
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var ips struct {
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Public string `json:"public-ipv4"`
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Private string `json:"local-ipv4"`
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}
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if err := json.Unmarshal(contents, &ips); err != nil {
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return nil, err
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}
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m := make(map[string]string)
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if ips.Private != "" {
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m["$private_ipv4"] = ips.Private
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}
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if ips.Public != "" {
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m["$public_ipv4"] = ips.Public
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}
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return m, nil
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}
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