Avoid slow mirrors

CHANGELOG.md

@@ -4,6 +4,17 @@
 
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.2] 2019-09-05
+
+### Added
+
+- Added policykit-1 to rootfs for Ubuntu.
+
+### Fixed
+
+- Avoided slow mirrors with use of mirror://mirrors.ubuntu.com for
+  Ubuntu 16.04 and newer.
+
 ## [1.1.1] 2019-08-31
 
 ### Fixed

kernel.go

@@ -162,6 +162,13 @@ func generateBaseDockerImage(registry string, commands []config.DockerCommand,
 	switch sk.DistroType {
 	case config.Ubuntu:
 		d += "ENV DEBIAN_FRONTEND=noninteractive\n"
+		if sk.DistroRelease >= "16.04" {
+			from := "http://.*ubuntu/"
+			to := "mirror://mirrors.ubuntu.com/mirrors.txt"
+			file := "/etc/apt/sources.list"
+			s := fmt.Sprintf("sed -i 's;%s;%s;' %s", from, to, file)
+			d += "RUN " + s + "\n"
+		}
 		d += "RUN apt-get update\n"
 		d += "RUN apt-get install -y build-essential libelf-dev\n"
 		d += "RUN apt-get install -y wget git\n"

main.go

@@ -84,7 +84,7 @@ func main() {
 	)
 
 	app.Author("Mikhail Klementev <root@dumpstack.io>")
-	app.Version("1.1.0")
+	app.Version("1.1.2")
 
 	pathFlag := app.Flag("path", "Path to work directory")
 	path := pathFlag.Default(".").ExistingDir()