Esempio n. 1
0
// addPackageCommands returns a slice of commands that, when run,
// will add the required apt repositories and packages.
func addPackageCommands(cfg *cloudinit.Config) ([]string, error) {
	// If apt_get_wrapper is specified, then prepend it to aptget.
	aptget := aptget
	wrapper := cfg.AptGetWrapper()
	switch wrapper.Enabled {
	case true:
		aptget = utils.ShQuote(wrapper.Command) + " " + aptget
	case "auto":
		aptget = fmt.Sprintf("$(which %s || true) %s", utils.ShQuote(wrapper.Command), aptget)
	}

	var cmds []string
	if len(cfg.AptSources()) > 0 {
		// Ensure add-apt-repository is available.
		cmds = append(cmds, cloudinit.LogProgressCmd("Installing add-apt-repository"))
		cmds = append(cmds, aptget+"install python-software-properties")
	}
	for _, src := range cfg.AptSources() {
		// PPA keys are obtained by add-apt-repository, from launchpad.
		if !strings.HasPrefix(src.Source, "ppa:") {
			if src.Key != "" {
				key := utils.ShQuote(src.Key)
				cmd := fmt.Sprintf("printf '%%s\\n' %s | apt-key add -", key)
				cmds = append(cmds, cmd)
			}
		}
		cmds = append(cmds, cloudinit.LogProgressCmd("Adding apt repository: %s", src.Source))
		cmds = append(cmds, "add-apt-repository -y "+utils.ShQuote(src.Source))
		if src.Prefs != nil {
			path := utils.ShQuote(src.Prefs.Path)
			contents := utils.ShQuote(src.Prefs.FileContents())
			cmds = append(cmds, "install -D -m 644 /dev/null "+path)
			cmds = append(cmds, `printf '%s\n' `+contents+` > `+path)
		}
	}
	if len(cfg.AptSources()) > 0 || cfg.AptUpdate() {
		cmds = append(cmds, cloudinit.LogProgressCmd("Running apt-get update"))
		cmds = append(cmds, aptget+"update")
	}
	if cfg.AptUpgrade() {
		cmds = append(cmds, cloudinit.LogProgressCmd("Running apt-get upgrade"))
		cmds = append(cmds, aptget+"upgrade")
	}
	for _, pkg := range cfg.Packages() {
		cmds = append(cmds, cloudinit.LogProgressCmd("Installing package: %s", pkg))
		if !strings.Contains(pkg, "--target-release") {
			// We only need to shquote the package name if it does not
			// contain additional arguments.
			pkg = utils.ShQuote(pkg)
		}
		cmd := fmt.Sprintf(aptget+"install %s", pkg)
		cmds = append(cmds, cmd)
	}
	if len(cmds) > 0 {
		// setting DEBIAN_FRONTEND=noninteractive prevents debconf
		// from prompting, always taking default values instead.
		cmds = append([]string{"export DEBIAN_FRONTEND=noninteractive"}, cmds...)
	}
	return cmds, nil
}