feat: implement basic debian container image

distro/debian/debian.go

@@ -2,6 +2,7 @@ package debian
 
 import (
 	"errors"
+	"fmt"
 	"regexp"
 	"strconv"
 	"strings"
@@ -202,3 +203,54 @@ func MatchImagePkg(km config.KernelMask) (pkgs []string, err error) {
 
 	return
 }
+
+func DockerEnvs(km config.KernelMask) (envs []string) {
+	envs = append(envs, "DEBIAN_FRONTEND=noninteractive")
+	return
+}
+
+func DockerCommands(km config.KernelMask) (commands []string) {
+	release := releaseFromString(km.DistroRelease)
+
+	var snapshot string
+
+	switch release {
+	case Wheezy:
+		snapshot = "20160605T173546Z"
+	case Jessie:
+		snapshot = "20190212T020859Z"
+	case Stretch:
+		snapshot = "20200719T110630Z"
+	case Buster:
+		snapshot = "20220911T180237Z"
+	case Bullseye:
+		snapshot = "20221218T103830Z"
+	default:
+		log.Fatal().Msgf("%s not supported", release)
+		return
+	}
+
+	params := "[check-valid-until=no trusted=yes]"
+	mirror := "http://snapshot.debian.org"
+	repourl := fmt.Sprintf("%s/archive/debian/%s/", mirror, snapshot)
+
+	cmdf := func(f string, s ...interface{}) {
+		commands = append(commands, fmt.Sprintf(f, s...))
+	}
+
+	repo := fmt.Sprintf("deb %s %s %s main contrib",
+		params, repourl, release)
+
+	cmdf("echo '%s' > /etc/apt/sources.list", repo)
+
+	repo = fmt.Sprintf("deb %s %s %s-updates main contrib",
+		params, repourl, release)
+
+	cmdf("echo '%s' >> /etc/apt/sources.list", repo)
+
+	cmdf("apt-get update")
+	cmdf("apt-get install -y wget")
+	cmdf("mkdir -p /lib/modules")
+
+	return
+}

kernel/kernel.go

@@ -288,6 +288,13 @@ func GenerateBaseDockerImage(registry string, commands []config.DockerCommand,
 			packages += " libdtrace-ctf"
 		}
 		d += fmt.Sprintf("RUN yum -y install %s\n", packages)
+	case config.Debian:
+		for _, e := range debian.DockerEnvs(sk) {
+			d += "ENV " + e + "\n"
+		}
+		for _, c := range debian.DockerCommands(sk) {
+			d += "RUN " + c + "\n"
+		}
 	default:
 		err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
 		return