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k3s/pkg/agent/templates/templates.go

108 lines
2.8 KiB

package templates
import (
"bytes"
"net/url"
"text/template"
"github.com/rancher/wharfie/pkg/registries"
"github.com/k3s-io/k3s/pkg/daemons/config"
)
type ContainerdRuntimeConfig struct {
RuntimeType string
BinaryName string
}
type ContainerdConfig struct {
NodeConfig *config.Node
DisableCgroup bool
SystemdCgroup bool
IsRunningInUserNS bool
EnableUnprivileged bool
NoDefaultEndpoint bool
PrivateRegistryConfig *registries.Registry
ExtraRuntimes map[string]ContainerdRuntimeConfig
Program string
}
type RegistryEndpoint struct {
OverridePath bool
URL *url.URL
Rewrites map[string]string
Config registries.RegistryConfig
}
type HostConfig struct {
Default *RegistryEndpoint
Program string
Endpoints []RegistryEndpoint
}
const HostsTomlTemplate = `
{{- /* */ -}}
# File generated by {{ .Program }}. DO NOT EDIT.
{{ with $e := .Default }}
{{- if $e.URL }}
server = "{{ $e.URL }}"
capabilities = ["pull", "resolve", "push"]
{{ end }}
{{- if $e.Config.TLS }}
{{- if $e.Config.TLS.CAFile }}
ca = [{{ printf "%q" $e.Config.TLS.CAFile }}]
{{- end }}
{{- if or $e.Config.TLS.CertFile $e.Config.TLS.KeyFile }}
client = [[{{ printf "%q" $e.Config.TLS.CertFile }}, {{ printf "%q" $e.Config.TLS.KeyFile }}]]
{{- end }}
{{- if $e.Config.TLS.InsecureSkipVerify }}
skip_verify = true
{{- end }}
{{ end }}
{{ end }}
[host]
{{ range $e := .Endpoints -}}
[host."{{ $e.URL }}"]
capabilities = ["pull", "resolve"]
{{- if $e.OverridePath }}
override_path = true
{{- end }}
{{- if $e.Config.TLS }}
{{- if $e.Config.TLS.CAFile }}
ca = [{{ printf "%q" $e.Config.TLS.CAFile }}]
{{- end }}
{{- if or $e.Config.TLS.CertFile $e.Config.TLS.KeyFile }}
client = [[{{ printf "%q" $e.Config.TLS.CertFile }}, {{ printf "%q" $e.Config.TLS.KeyFile }}]]
{{- end }}
{{- if $e.Config.TLS.InsecureSkipVerify }}
skip_verify = true
{{- end }}
{{ end }}
{{- if $e.Rewrites }}
[host."{{ $e.URL }}".rewrite]
{{- range $pattern, $replace := $e.Rewrites }}
"{{ $pattern }}" = "{{ $replace }}"
{{- end }}
{{ end }}
{{ end -}}
`
func ParseTemplateFromConfig(templateBuffer string, config interface{}) (string, error) {
out := new(bytes.Buffer)
t := template.Must(template.New("compiled_template").Funcs(templateFuncs).Parse(templateBuffer))
template.Must(t.New("base").Parse(ContainerdConfigTemplate))
if err := t.Execute(out, config); err != nil {
return "", err
}
return out.String(), nil
}
func ParseHostsTemplateFromConfig(templateBuffer string, config interface{}) (string, error) {
out := new(bytes.Buffer)
t := template.Must(template.New("compiled_template").Funcs(templateFuncs).Parse(templateBuffer))
if err := t.Execute(out, config); err != nil {
return "", err
}
return out.String(), nil
}