117 lines
3.3 KiB
Go
117 lines
3.3 KiB
Go
package distros
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import (
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"errors"
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"fmt"
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"net/http"
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"regexp"
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"strconv"
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"github.com/rs/zerolog/log"
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"golang.org/x/net/html"
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"libguestfs.org/guestfs"
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"git.csclub.uwaterloo.ca/cloud/cloudbuild/pkg/config"
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)
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// TODO: reduce code duplication with FedoraTemplateManager
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type AlmaLinuxTemplateManager struct {
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TemplateManager
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}
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// NewAlmaLinuxTemplateManager returns a AlmaLinuxTemplateManager with the given
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// config values.
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func NewAlmaLinuxTemplateManager(cfg *config.Config) *AlmaLinuxTemplateManager {
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logger := log.With().Str("distro", "almalinux").Logger()
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almaLinuxTemplateManager := AlmaLinuxTemplateManager{
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TemplateManager{
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cfg: cfg,
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logger: &logger,
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impl: nil,
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},
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}
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almaLinuxTemplateManager.TemplateManager.impl = &almaLinuxTemplateManager
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return &almaLinuxTemplateManager
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}
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func (mgr *AlmaLinuxTemplateManager) GetLatestVersion() (version string, codename string, err error) {
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resp, err := http.Get("https://mirror.csclub.uwaterloo.ca/almalinux/")
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if err != nil {
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return
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}
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defer resp.Body.Close()
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node, err := html.Parse(resp.Body)
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if err != nil {
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return
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}
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var intVersion int64
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getMaxVersionFromHtml(node, &intVersion)
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if intVersion == 0 {
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err = errors.New("Could not determine latest AlmaLinux version from HTML")
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} else {
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version = strconv.FormatInt(intVersion, 10)
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// AlmaLinux doesn't have codenames, only numbered versions
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codename = version
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}
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return
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}
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func (mgr *AlmaLinuxTemplateManager) DownloadTemplate(version, codename string) (path string, err error) {
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floatVersion, err := strconv.ParseFloat(version, 64)
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if err != nil {
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return
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}
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majorVersion := int(floatVersion)
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filename := fmt.Sprintf("AlmaLinux-%d-GenericCloud-latest.x86_64.qcow2", majorVersion)
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url := fmt.Sprintf("https://mirror.csclub.uwaterloo.ca/almalinux/%s/cloud/x86_64/images/%s", version, filename)
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return mgr.DownloadTemplateGeneric(filename, url)
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}
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func (mgr *AlmaLinuxTemplateManager) UsesNetworkManager() bool {
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return true
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}
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func (mgr *AlmaLinuxTemplateManager) addCloudInitSnippet(handle *guestfs.Guestfs) error {
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path := "/etc/cloud/cloud.cfg.d/99_csclub.cfg"
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mgr.logger.Debug().Msg("Writing to " + path)
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return handle.Write(path, getResource("fedora-cloud-init"))
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}
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func (mgr *AlmaLinuxTemplateManager) HasSELinuxEnabled() bool {
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return true
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}
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func (mgr *AlmaLinuxTemplateManager) CommandToUpdatePackageCache() []string {
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return fedoraCommandToUpdatePackageCache()
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}
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var almaLinuxYumRepoBaseUrlPattern *regexp.Regexp = regexp.MustCompile(
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"^(?P<scheme>https?://)[A-Za-z0-9./-]+(?P<path>/almalinux/\\$releasever/[A-Za-z0-9./$-]+)$",
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)
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func (mgr *AlmaLinuxTemplateManager) transformAlmaLinuxYumRepoBaseUrl(url string) string {
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submatches := almaLinuxYumRepoBaseUrlPattern.FindStringSubmatch(url)
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if submatches != nil {
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scheme, path := submatches[1], submatches[2]
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url = scheme + mgr.cfg.MirrorHost + path
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}
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return url
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}
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func (mgr *AlmaLinuxTemplateManager) PerformDistroSpecificModifications(handle *guestfs.Guestfs) (err error) {
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if err = mgr.setChronyOptions(handle, "/etc/chrony.conf"); err != nil {
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return
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}
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if err = mgr.setNetworkManagerOptions(handle); err != nil {
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return
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}
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if err = mgr.addCloudInitSnippet(handle); err != nil {
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return
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}
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if err = mgr.replaceYumMirrorUrls(handle, mgr.transformAlmaLinuxYumRepoBaseUrl); err != nil {
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return
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}
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return
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}
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