diff --git a/examples/bar/mac-addr b/examples/bar/mac-addr
new file mode 100644
index 000000000..8c8796cdf
--- /dev/null
+++ b/examples/bar/mac-addr
@@ -0,0 +1 @@
+e2:14:27:53:9f:9f
\ No newline at end of file
diff --git a/examples/bar/qemu.pid b/examples/bar/qemu.pid
new file mode 100644
index 000000000..a8135b832
--- /dev/null
+++ b/examples/bar/qemu.pid
@@ -0,0 +1 @@
+87422
diff --git a/examples/foo/mac-addr b/examples/foo/mac-addr
new file mode 100644
index 000000000..71b0b7b4a
--- /dev/null
+++ b/examples/foo/mac-addr
@@ -0,0 +1 @@
+9e:70:33:12:ee:0a
\ No newline at end of file
diff --git a/examples/foo/qemu.pid b/examples/foo/qemu.pid
new file mode 100644
index 000000000..9bc570c40
--- /dev/null
+++ b/examples/foo/qemu.pid
@@ -0,0 +1 @@
+87412
diff --git a/tools/alpine/versions.aarch64 b/tools/alpine/versions.aarch64
index 6c9e81fb4..f17c42ded 100644
--- a/tools/alpine/versions.aarch64
+++ b/tools/alpine/versions.aarch64
@@ -1,4 +1,4 @@
-# linuxkit/alpine:9403ab03f754228313f5bc2b0fb131330a2f4bab-arm64
+# linuxkit/alpine:ae5646c043bb48cee3fa428714ee27dda2f57812-arm64
 # automatically generated list of installed packages
 abuild-3.0.0_rc2-r8
 alpine-baselayout-3.0.4-r0
@@ -76,7 +76,7 @@ gmp-dev-6.1.2-r0
 gnupg-2.1.20-r0
 gnutls-3.5.13-r0
 go-1.8.4-r0
-go-1.9.2-r0
+go-1.9.2-r1
 grep-3.0-r0
 guile-2.0.13-r0
 guile-libs-2.0.13-r0
@@ -257,7 +257,7 @@ util-linux-dev-2.28.2-r2
 vde2-libs-2.3.2-r7
 vim-8.0.0595-r0
 wayland-1.13.0-r0
-wireguard-tools-0.0.20171017-r0
+wireguard-tools-0.0.20171101-r0
 wireless-tools-30_pre9-r0
 wpa_supplicant-2.6-r4
 xfsprogs-4.5.0-r0
diff --git a/tools/alpine/versions.x86_64 b/tools/alpine/versions.x86_64
index 91f0938ea..dc21d457f 100644
--- a/tools/alpine/versions.x86_64
+++ b/tools/alpine/versions.x86_64
@@ -1,10 +1,10 @@
-# linuxkit/alpine:3bd325c47d5f6e6f5126e588d9d9404572399c42-amd64
+# linuxkit/alpine:0fb5b5e7952d22eeae57607493168e679a4a0c0a-amd64
 # automatically generated list of installed packages
 abuild-3.0.0_rc2-r8
 alpine-baselayout-3.0.4-r0
 alpine-keys-2.1-r1
 alsa-lib-1.1.3-r0
-apk-tools-2.7.3-r0
+apk-tools-2.7.4-r0
 argp-standalone-1.3-r2
 attr-2.4.47-r6
 attr-dev-2.4.47-r6
@@ -77,7 +77,7 @@ gmp-dev-6.1.2-r0
 gnupg-2.1.20-r0
 gnutls-3.5.13-r0
 go-1.8.4-r0
-go-1.9.2-r0
+go-1.9.2-r1
 grep-3.0-r0
 guile-2.0.13-r0
 guile-libs-2.0.13-r0
@@ -265,7 +265,7 @@ util-linux-dev-2.28.2-r2
 vde2-libs-2.3.2-r7
 vim-8.0.0595-r0
 wayland-1.13.0-r0
-wireguard-tools-0.0.20171017-r0
+wireguard-tools-0.0.20171101-r0
 wireless-tools-30_pre9-r0
 wpa_supplicant-2.6-r4
 xfsprogs-4.5.0-r0