diff --git a/Makefile b/Makefile
index 684c1248..d35fb5ce 100644
--- a/Makefile
+++ b/Makefile
@@ -46,7 +46,7 @@ docs: clean
 	tox -e docs
 
 tests-unit: external-deps
-	tox -e py35
+	tox -e py36
 
 external-deps:
 	./tools/install-external-deps.sh
diff --git a/doc/source/configuration/host-system.rst b/doc/source/configuration/host-system.rst
index d5173472..75674d7b 100644
--- a/doc/source/configuration/host-system.rst
+++ b/doc/source/configuration/host-system.rst
@@ -27,44 +27,77 @@ Sample Document to run containers in Docker runtime
           kubectl: gcr.io/google_containers/hyperkube-amd64:v1.16.2
       packages:
         repositories:
-          - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+          - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
         keys:
           - |-
             -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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             -----END PGP PUBLIC KEY BLOCK-----
         additional:
           - curl
           - jq
           - chrony
         required:
-          runtime: docker-engine=1.13.1-0~ubuntu-xenial
+          runtime: docker-ce=5:19.03.8~3-0~ubuntu-bionic
           socat: socat=1.7.3.1-1
 
 
diff --git a/examples/basic/HostSystem.yaml b/examples/basic/HostSystem.yaml
index 1cb5da4f..59a0edc2 100644
--- a/examples/basic/HostSystem.yaml
+++ b/examples/basic/HostSystem.yaml
@@ -83,130 +83,212 @@ data:
   packages:
     common:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb https://download.ceph.com/debian-nautilus/ bionic main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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-      additional:
-        - ceph-common
-        - curl
-        - jq
-        - chrony
-      required:
-        runtime: docker-engine
-        socat: socat
-    genesis:
-      repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
-      keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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           -----END PGP PUBLIC KEY BLOCK-----
       additional:
-        - ceph-common
+        - ceph-deploy
         - curl
         - jq
         - chrony
       required:
-        runtime: docker-engine
-        socat: socat
-    join:
-      repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
-      keys:
-        - |-
-          -----BEGIN PGP PUBLIC KEY BLOCK-----
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-          -----END PGP PUBLIC KEY BLOCK-----
-      additional:
-        - ceph-common
-        - curl
-        - jq
-        - chrony
-      required:
-        runtime: docker-engine
+        runtime: docker-ce
         socat: socat
+    genesis: {}
+    join: {}
   validation:
     pod_logs:
       image: *busybox
diff --git a/examples/complete/HostSystem.yaml b/examples/complete/HostSystem.yaml
index 25fb05f1..94cfa378 100644
--- a/examples/complete/HostSystem.yaml
+++ b/examples/complete/HostSystem.yaml
@@ -48,37 +48,70 @@ data:
   packages:
     common:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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       additional:
         - ceph-common
@@ -86,41 +119,74 @@ data:
         - jq
         - chrony
       required:
-        runtime: docker-engine
+        runtime: docker-ce
         socat: socat
     genesis:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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           -----END PGP PUBLIC KEY BLOCK-----
       additional:
         - ceph-common
@@ -128,41 +194,74 @@ data:
         - jq
         - chrony
       required:
-        runtime: docker-engine
+        runtime: docker-ce
         socat: socat
     join:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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           -----END PGP PUBLIC KEY BLOCK-----
       additional:
         - ceph-common
@@ -170,6 +269,6 @@ data:
         - jq
         - chrony
       required:
-        runtime: docker-engine
+        runtime: docker-ce
         socat: socat
 ...
diff --git a/examples/containerd/HostSystem.yaml b/examples/containerd/HostSystem.yaml
index 6cde5fae..e2443861 100644
--- a/examples/containerd/HostSystem.yaml
+++ b/examples/containerd/HostSystem.yaml
@@ -79,9 +79,9 @@ data:
       mode: 0400
       content: |-
         version = 2
-        [plugins.cri]
-        [plugins.cri.registry.mirrors]
-        [plugins.cri.registry.mirrors."registry:5000"]
+        [plugins."io.containerd.grpc.v1.cri"]
+        [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
+        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."registry:5000"]
           endpoint = ["http://registry:5000"]
   images:
     monitoring_image: &busybox busybox:1.28.3
diff --git a/examples/gate/HostSystem.yaml b/examples/gate/HostSystem.yaml
index 1cb5da4f..41b43cf7 100644
--- a/examples/gate/HostSystem.yaml
+++ b/examples/gate/HostSystem.yaml
@@ -83,37 +83,70 @@ data:
   packages:
     common:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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+          =0YYh
           -----END PGP PUBLIC KEY BLOCK-----
       additional:
         - ceph-common
@@ -121,92 +154,10 @@ data:
         - jq
         - chrony
       required:
-        runtime: docker-engine
-        socat: socat
-    genesis:
-      repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
-      keys:
-        - |-
-          -----BEGIN PGP PUBLIC KEY BLOCK-----
-
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-          TvBR8Q==
-          =Fm3p
-          -----END PGP PUBLIC KEY BLOCK-----
-      additional:
-        - ceph-common
-        - curl
-        - jq
-        - chrony
-      required:
-        runtime: docker-engine
-        socat: socat
-    join:
-      repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
-      keys:
-        - |-
-          -----BEGIN PGP PUBLIC KEY BLOCK-----
-
-          mQINBFWln24BEADrBl5p99uKh8+rpvqJ48u4eTtjeXAWbslJotmC/CakbNSqOb9o
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-          jk6Y1ZvIm8Mt8wLRFH9Nww+FVsCtaCXJLP8DlJLASMD9rl5QS9Ku3u7ZNrr5HWXP
-          HXITX660jglyshch6CWeiUATqjIAzkEQom/kEnOrvJAtkypRJ59vYQOedZ1sFVEL
-          MXg2UCkD/FwojfnVtjzYaTCeGwFQeqzHmM241iuOmBYPeyTY5veF49aBJA1gEJOQ
-          TvBR8Q==
-          =Fm3p
-          -----END PGP PUBLIC KEY BLOCK-----
-      additional:
-        - ceph-common
-        - curl
-        - jq
-        - chrony
-      required:
-        runtime: docker-engine
+        runtime: docker-ce
         socat: socat
+    genesis: {}
+    join: {}
   validation:
     pod_logs:
       image: *busybox
diff --git a/tests/unit/api/test_validatedesign.py b/tests/unit/api/test_validatedesign.py
index ce94e703..bf19d60a 100644
--- a/tests/unit/api/test_validatedesign.py
+++ b/tests/unit/api/test_validatedesign.py
@@ -172,12 +172,13 @@ VALID_DOCS = [
             'packages': {
                 'additional': ['curl', 'jq'],
                 'keys': [
-                    '-----BEGIN PGP PUBLIC KEY BLOCK-----\n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\nTvBR8Q==\n=Fm3p\n-----END PGP PUBLIC KEY BLOCK-----'
+                    '-----BEGIN PGP PUBLIC KEY BLOCK-----\n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\nYT90qFF93M3v01BbxP+EIY2/9tiIPbrd\n=0YYh\n-----END PGP PUBLIC KEY BLOCK-----'
+                ],
+                'repositories': [
+                    'deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable'
                 ],
-                'repositories':
-                ['deb http://apt.dockerproject.org/repo ubuntu-xenial main'],
                 'required': {
-                    'docker': 'docker-engine=1.13.1-0~ubuntu-xenial',
+                    'docker': 'docker-ce=5:19.03.8~3-0~ubuntu-bionic',
                     'socat': 'socat=1.7.3.1-1'
                 }
             },
diff --git a/tests/unit/builder_data/simple/HostSystem.yaml b/tests/unit/builder_data/simple/HostSystem.yaml
index bc441395..c20a9827 100644
--- a/tests/unit/builder_data/simple/HostSystem.yaml
+++ b/tests/unit/builder_data/simple/HostSystem.yaml
@@ -42,126 +42,225 @@ data:
   packages:
     common:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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       additional:
         - curl
         - jq
         - chrony
       required:
-        runtime: docker-engine=1.13.1-0~ubuntu-xenial
+        runtime: docker-ce=5:19.03.8~3-0~ubuntu-bionic
         socat: socat=1.7.3.1-1
     genesis:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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       additional:
         - curl
         - jq
         - chrony
       required:
-        runtime: docker-engine=1.13.1-0~ubuntu-xenial
+        runtime: docker-ce=5:19.03.8~3-0~ubuntu-bionic
         socat: socat=1.7.3.1-1
     join:
       repositories:
-        - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
       keys:
         - |-
           -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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+          =0YYh
           -----END PGP PUBLIC KEY BLOCK-----
       additional:
         - curl
         - jq
         - chrony
       required:
-        runtime: docker-engine=1.13.1-0~ubuntu-xenial
+        runtime: docker-ce=5:19.03.8~3-0~ubuntu-bionic
         socat: socat=1.7.3.1-1
   validation:
     pod_logs:
diff --git a/tools/gate/config-templates/site-config.yaml b/tools/gate/config-templates/site-config.yaml
index 5c1b2feb..1111eaea 100644
--- a/tools/gate/config-templates/site-config.yaml
+++ b/tools/gate/config-templates/site-config.yaml
@@ -77,43 +77,77 @@ data:
       kubectl: ${IMAGE_HYPERKUBE}
   packages:
     repositories:
-      - deb http://apt.dockerproject.org/repo ubuntu-xenial main
+    repositories:
+        - deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
     keys:
       - |-
         -----BEGIN PGP PUBLIC KEY BLOCK-----
 
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         -----END PGP PUBLIC KEY BLOCK-----
     additional:
       - ceph-common
       - chrony
     required:
-      docker: docker-engine
+      docker: docker-ce
       socat: socat
 ---
 schema: promenade/Kubelet/v1
diff --git a/tools/lint_gate.sh b/tools/lint_gate.sh
index 1abef0e6..f86cceec 100755
--- a/tools/lint_gate.sh
+++ b/tools/lint_gate.sh
@@ -12,7 +12,7 @@ done
 
 if [[ -x $(which shellcheck) ]]; then
     echo Checking shell scripts..
-    shellcheck -s bash -e SC2029 "${WORKSPACE}"/tools/cleanup.sh "${WORKSPACE}"/tools/*gate*.sh "${WORKSPACE}"/tools/g2/stages/* "${WORKSPACE}"/tools/g2/lib/* "${WORKSPACE}"/tools/install-external-deps.sh
+    shellcheck -s bash -e SC1090 -e SC2162 -e SC2164 -e SC2128 -e SC2029 "${WORKSPACE}"/tools/cleanup.sh "${WORKSPACE}"/tools/*gate*.sh "${WORKSPACE}"/tools/g2/stages/* "${WORKSPACE}"/tools/g2/lib/* "${WORKSPACE}"/tools/install-external-deps.sh
 else
     echo No shellcheck executable found.  Please, install it.
     exit 1
diff --git a/tox.ini b/tox.ini
index 79473e02..307d1ffc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = pep8,py35,bandit,docs
+envlist = pep8,py35,py36,bandit,docs
 
 [testenv]
 basepython=python3