build squashfs in packer; set hostname using mac address

Makefile

@@ -55,6 +55,7 @@ images/debian-stretch.squashfs: images
 		-v "${PWD}/images:/images" \
 		-e "user=`id -u`" \
 		-e "group=`id -g`" \
+		-e "IMAGES=${PWD}/images" \
 		-e "ANNOUNCE=$(ANNOUNCE)" \
 		-e "WEBSEED=$(WEBSEED)" \
 		-e "COMPRESSION_LEVEL=$(COMPRESSION_LEVEL)" \

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker:dind
+FROM docker
 
 RUN apk add --no-cache \
 		ca-certificates \

docker/entrypoint.sh

@@ -37,36 +37,10 @@ make_torrent() {
 }
 
 run_packer() {
-	packer build "$PACKER_JSON"
+	packer build "$NAME.json"
-
-	mkdir -p build/rootfs
-	tar xf build/rootfs.tar -C build/rootfs
-
-	mv build/rootfs/artifacts/initramfs "/images/$INITRAMFS_FILE"
-	mv build/rootfs/artifacts/linux "/images/$LINUX_FILE"
-
-	rm -rf build/rootfs/artifacts
-
-	rm -- \
-		build/rootfs/.dockerenv \
-		build/rootfs/initrd.* \
-		build/rootfs/vmlinuz*
-
-	if [ -e "/images/$SQUASHFS_FILE" ]; then
-		rm "/images/$SQUASHFS_FILE"
-	fi
-
-	mksquashfs build/rootfs "/images/$SQUASHFS_FILE" \
-		-comp lzo \
-		-Xcompression-level $COMPRESSION_LEVEL
-
-	rm -rf build
 
 	if [ "$user" != "" ] && [ "$group" != "" ]; then
-		chown $user:$group \
+		chown $user:$group "/images/${NAME}."*
-			"/images/$INITRAMFS_FILE" \
-			"/images/$LINUX_FILE" \
-			"/images/$SQUASHFS_FILE"
 	fi
 }
 
@@ -77,10 +51,7 @@ if [ "$NAME" = "" ]; then
 	exit 1
 fi
 
-export PACKER_JSON="$NAME.json"
+export NAME
-export INITRAMFS_FILE="$NAME.initramfs"
-export LINUX_FILE="$NAME.linux"
-export SQUASHFS_FILE="$NAME.squashfs"
 
 if [ -z "$TASK" ] || [ "$TASK" == "packer" ]; then
 	run_packer

packer/debian-stretch.json

@@ -1,5 +1,11 @@
 {
   "variables": {
+	"name": "{{env `NAME`}}",
+	"squashfs_file": "{{env `NAME`}}.squashfs",
+	"initramfs_file": "{{env `NAME`}}.initramfs",
+	"linux_file": "{{env `NAME`}}.linux",
+	"compression_level": "{{env `COMPRESSION_LEVEL`}}",
+	"images": "{{env `IMAGES`}}",
     "ci_job_id": "{{env `CI_JOB_ID`}}",
     "ci_commit_sha": "{{env `CI_COMMIT_SHA`}}",
     "ci_commit_tag": "{{env `CI_COMMIT_TAG`}}",
@@ -16,7 +22,15 @@
     {
       "type": "docker",
       "image": "debian:stretch",
-      "export_path": "build/rootfs.tar"
+      "discard": true,
+	  "run_command": [
+		  "-d",
+		  "-i",
+		  "-t",
+		  "-v", "{{user `images`}}:/tmp/images",
+		  "{{.Image}}",
+		  "/bin/bash"
+	  ]
     }
   ],
   "provisioners": [
@@ -58,10 +72,9 @@
         "echo overlay >> /etc/initramfs-tools/modules",
         "echo 'RESUME=none' > /etc/initramfs-tools/conf.d/resume",
         "mkdir /usr/local/boot",
-        "apt-get -f -y install aria2 ca-certificates linux-image-amd64 lvm2",
+        "apt-get -f -y install aria2 linux-image-amd64 lvm2",
-        "mkdir /artifacts",
+        "cp $(find /boot/ -name 'initrd.img-*' | sort -V | tail -n 1) '/tmp/images/{{user `initramfs_file`}}'",
-        "cp $(find /boot/ -name 'initrd.img-*' | sort -V | tail -n 1) /artifacts/initramfs",
+        "cp $(find /boot/ -name 'vmlinuz-*' | sort -V | tail -n 1) '/tmp/images/{{user `linux_file`}}'"
-        "cp $(find /boot/ -name 'vmlinuz-*' | sort -V | tail -n 1) /artifacts/linux"
       ]
     },
     {
@@ -76,6 +89,31 @@
     {
       "type": "shell",
       "inline": [ "rm /boot && mkdir /boot" ]
+    },
+    {
+      "type": "shell",
+      "inline": [
+          "set -x",
+		  "apt-get -y install squashfs-tools",
+		  "dpkg -L squashfs-tools liblzo2-2 | while read f; do [ -f \"$f\" ] && echo \"$f\"; done > /tmp/ignore_files",
+		  "echo '/etc/resolv.conf' >> /tmp/ignore_files",
+		  "echo '/etc/hostname' >> /tmp/ignore_files",
+		  "echo '/etc/hosts' >> /tmp/ignore_files",
+		  "mkdir -p /tmp/extra/tmp /tmp/extra/proc /tmp/extra/sys /tmp/extra/etc"
+	  ]
+	},
+    {
+      "type": "file",
+      "source": "hosts",
+      "destination": "/tmp/extra/etc/hosts"
+    },
+	{
+      "type": "shell",
+      "inline": [
+		  "if [ -e '/tmp/images/{{user `squashfs_file`}}' ]; then rm '/tmp/images/{{user `squashfs_file`}}'; fi",
+		  "squashfs_content=\"$(find / -mindepth 1 -maxdepth 1 | grep -vE '^/(proc|sys|tmp|[.]dockerenv|packer-files)$')\"",
+		  "mksquashfs $squashfs_content /tmp/extra/* '/tmp/images/{{user `squashfs_file`}}' -comp lzo -Xcompression-level {{user `compression_level`}} -ef /tmp/ignore_files"
+	  ]
     }
   ]
 }

packer/hosts

@@ -0,0 +1,6 @@
+127.0.0.1 localhost
+127.0.1.1 @@HOSTNAME@@
+
+::1     localhost ip6-localhost ip6-loopback
+ff02::1 ip6-allnodes
+ff02::2 ip6-allrouters

packer/initramfs/labsync

@@ -184,6 +184,10 @@ PARTTABLE
 	mount -n -o move /overlay ${rootmnt}/overlay
 	mount -n -o move /rom ${rootmnt}/rom
 
+	hostname=$(ip -o link show | sed -ne 's#^.*link/ether \([0-9a-f:]*\).*$#\1#p' | sed -ne '1{s/://g;p}')
+	echo $hostname > ${rootmnt}/etc/hostname
+	sed -i "s/@@HOSTNAME@@/$hostname/" ${rootmnt}/etc/hosts
+
 	if [ -z "$labsync_localboot" ]; then
 		labsync_set_environment LABSYNC "$torrent_name"
 		labsync_set_environment LABSYNC_TORRENT "${labsync_torrent}"