Add ArchLinux support

config/cluster/host.go

@@ -379,6 +379,16 @@ func (h *Host) NeedIPTables() bool {
 	return !h.Configurer.CommandExist(h, "iptables")
 }
 
+// NeedInetUtils returns true when the inetutils package is needed on the host to run `hostname`.
+func (h *Host) NeedInetUtils() bool {
+	// Windows does not need inetutils
+	if h.Configurer.Kind() == "windows" {
+		return false
+	}
+
+	return !h.Configurer.CommandExist(h, "hostname")
+}
+
 // WaitKubeAPIReady blocks until the local kube api responds to /version
 func (h *Host) WaitKubeAPIReady() error {
 	// If the anon-auth is disabled on kube api the version endpoint will give 401

configurer/linux/archlinux.go

@@ -0,0 +1,25 @@
+package linux
+
+import (
+	"github.com/k0sproject/k0sctl/configurer"
+	"github.com/k0sproject/rig"
+	"github.com/k0sproject/rig/os/linux"
+	"github.com/k0sproject/rig/os/registry"
+)
+
+// Archlinux provides OS support for Archlinux systems
+type Archlinux struct {
+	linux.Archlinux
+	configurer.Linux
+}
+
+func init() {
+	registry.RegisterOSModule(
+		func(os rig.OSVersion) bool {
+			return os.IDLike == "arch"
+		},
+		func() interface{} {
+			return &Archlinux{}
+		},
+	)
+}

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/go-playground/validator/v10 v10.4.1
 	github.com/hashicorp/go-version v1.2.1
 	github.com/k0sproject/dig v0.1.1
-	github.com/k0sproject/rig v0.3.21
+	github.com/k0sproject/rig v0.3.23
 	github.com/logrusorgru/aurora v2.0.3+incompatible
 	github.com/mattn/go-isatty v0.0.12
 	github.com/segmentio/analytics-go v3.1.0+incompatible

go.sum

@@ -149,8 +149,8 @@ github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/k0sproject/dig v0.1.1 h1:TmNoZtsCXF3jDzwSSEEwKjjD7fG5IyG0p8uvK+z1Wyo=
 github.com/k0sproject/dig v0.1.1/go.mod h1:rBcqaQlJpcKdt2x/OE/lPvhGU50u/e95CSm5g/r4s78=
-github.com/k0sproject/rig v0.3.21 h1:kUFYSTULHbXp8HgQHWJZGtmdj+AtY/lTT1ZH54Q/wMk=
-github.com/k0sproject/rig v0.3.21/go.mod h1:6BgqiLQMw5SCMrysZ42ORzyXd3NOyr9KDEa2UGYphdY=
+github.com/k0sproject/rig v0.3.23 h1:jmGxX8nuT0GNrjmjCCQIASaSPg5g26gYJjdPMo6Mu2Y=
+github.com/k0sproject/rig v0.3.23/go.mod h1:6BgqiLQMw5SCMrysZ42ORzyXd3NOyr9KDEa2UGYphdY=
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=

phase/prepare_hosts.go

@@ -51,6 +51,10 @@ func (p *PrepareHosts) prepareHost(h *cluster.Host) error {
 		pkgs = append(pkgs, "iptables")
 	}
 
+	if h.NeedInetUtils() {
+		pkgs = append(pkgs, "inetutils")
+	}
+
 	if len(pkgs) > 0 {
 		log.Infof("%s: installing packages (%s)", h, strings.Join(pkgs, ", "))
 		if err := h.Configurer.InstallPackage(h, pkgs...); err != nil {