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userdata_ubuntu.go
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userdata_ubuntu.go
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package nodebootstrap
import (
"fmt"
"strings"
"github.com/kris-nova/logger"
"github.com/pkg/errors"
api "github.com/weaveworks/eksctl/pkg/apis/eksctl.io/v1alpha5"
"github.com/weaveworks/eksctl/pkg/cloudconfig"
"github.com/weaveworks/eksctl/pkg/utils/kubeconfig"
)
func makeUbuntu1804Config(spec *api.ClusterConfig, ng *api.NodeGroup) (configFiles, error) {
clientConfigData, err := makeClientConfigData(spec, kubeconfig.HeptioAuthenticatorAWS)
if err != nil {
return nil, err
}
if len(spec.Status.CertificateAuthorityData) == 0 {
return nil, errors.New("invalid cluster config: missing CertificateAuthorityData")
}
kubeletEnvParams := append(makeCommonKubeletEnvParams(ng),
fmt.Sprintf("CLUSTER_DNS=%s", clusterDNS(spec, ng)),
)
kubeletConfigData, err := makeKubeletConfigYAML(spec, ng)
if err != nil {
return nil, err
}
files := configFiles{
configDir: {
"metadata.env": {content: strings.Join(makeMetadata(spec), "\n")},
"kubelet.env": {content: strings.Join(kubeletEnvParams, "\n")},
"kubelet.yaml": {content: string(kubeletConfigData)},
// TODO: https://github.com/weaveworks/eksctl/issues/161
"ca.crt": {content: string(spec.Status.CertificateAuthorityData)},
"kubeconfig.yaml": {content: string(clientConfigData)},
"max_pods.map": {content: makeMaxPodsMapping()},
},
}
return files, nil
}
// NewUserDataForUbuntu1804 creates new user data for Ubuntu 18.04 nodes
func NewUserDataForUbuntu1804(spec *api.ClusterConfig, ng *api.NodeGroup) (string, error) {
config := cloudconfig.New()
files, err := makeUbuntu1804Config(spec, ng)
if err != nil {
return "", err
}
scripts := []string{}
for _, command := range ng.PreBootstrapCommands {
config.AddShellCommand(command)
}
if ng.OverrideBootstrapCommand != nil {
config.AddShellCommand(*ng.OverrideBootstrapCommand)
} else {
scripts = append(scripts, "bootstrap.ubuntu.sh")
}
if err = addFilesAndScripts(config, files, scripts); err != nil {
return "", err
}
body, err := config.Encode()
if err != nil {
return "", errors.Wrap(err, "encoding user data")
}
logger.Debug("user-data = %s", body)
return body, nil
}