diff --git a/.circleci/config.yml b/.circleci/config.yml
index c58be68..51ee5f5 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,5 +1,22 @@
 version: 2
 jobs:
+  testbuild:
+    machine:
+      image: ubuntu-1604:201903-01
+    steps:
+      - run: sudo apt update && sudo apt install signify-openbsd
+      - checkout
+      - run: bash docker-common.sh
+      - run:
+          name: Create snapshot Rootfs container
+          command: bash docker-rootfs.sh
+      - run:
+          name: Create snapshot ImageBuilder container
+          command: bash docker-imagebuilder.sh
+      - run:
+          name: Create snapshot SDK container
+          command: bash docker-sdk.sh
+
   rootfs-snapshot:
     machine: true
     steps:
@@ -11,6 +28,7 @@ jobs:
           environment:
             DOCKER_IMAGE: "openwrtorg/rootfs"
             TARGETS: "x86-64 armvirt-32 armvirt-64"
+
   imagebuilder-snapshot:
     machine: true
     steps:
@@ -22,6 +40,7 @@ jobs:
           environment:
             DOCKER_IMAGE: "openwrtorg/imagebuilder"
             TARGETS: "cns3xxx-generic mvebu-cortexa53 mvebu-cortexa72 mvebu-cortexa9 ipq40xx-generic ipq806x-generic layerscape-armv7 layerscape-armv8_32b layerscape-armv8_64b imx6-generic octeontx-generic sunxi-cortexa8 sunxi-cortexa53 sunxi-cortexa7 ppc44x-generic bcm53xx-generic brcm47xx-mips74k brcm47xx-generic brcm47xx-legacy ath79-nand ath79-generic ath79-tiny ath25-generic mcs814x-generic ar7-ac49x ar7-generic kirkwood-generic apm821xx-sata apm821xx-nand ramips-rt305x ramips-rt3883 ramips-mt76x8 ramips-mt7620 ramips-rt288x ramips-mt7621 au1000-au1550 au1000-au1500 pistachio-generic gemini-wiligear gemini-generic gemini-raidsonic brcm2708-bcm2708 brcm2708-bcm2709 brcm2708-bcm2710 x86-geode x86-generic x86-legacy x86-64 lantiq-xway_legacy lantiq-xrx200 lantiq-ase lantiq-falcon lantiq-xway mediatek-mt7622 mediatek-mt7623 mediatek-32 mpc85xx-p1020 mpc85xx-p2020 mpc85xx-generic tegra-generic zynq-generic archs38-generic ixp4xx-harddisk ixp4xx-generic mxs-generic oxnas-ox820 octeon-generic armvirt-32 armvirt-64 arc770-generic adm8668-generic xburst-qi_lb60 samsung-s5pv210 omap-generic ar71xx-nand ar71xx-generic ar71xx-tiny ar71xx-mikrotik brcm63xx-generic brcm63xx-smp at91-sama5d3 at91-sama5d4 at91-sam9x at91-sama5 at91-legacy at91-sama5d2 rb532-generic malta-le malta-be malta-be64 malta-le64"
+
   sdk-snapshot:
     machine: true
     steps:
@@ -36,7 +55,17 @@ jobs:
 
 workflows:
   version: 2
-  docker:
+  testbuild:
+    jobs:
+      - testbuild:
+          filters:
+            branches:
+              ignore: master
+  dockerbuild:
+    jobs:
+      - rootfs-snapshot
+      - imagebuilder-snapshot
+      - sdk-snapshot
     triggers:
       - schedule:
           cron: "0 0 * * *"
@@ -44,7 +73,3 @@ workflows:
             branches:
               only:
                 - master
-    jobs:
-      - rootfs-snapshot
-      - imagebuilder-snapshot
-      - sdk-snapshot