Fix ubuntu16/centos8 CI jobs (#7972)

tests/files/packet_centos8-kube-ovn.yml

@@ -2,6 +2,7 @@
 # Instance settings
 cloud_image: centos-8
 mode: default
+vm_memory: 3072Mi
 
 # Kubespray settings
 kube_network_plugin: kube-ovn

tests/files/packet_ubuntu16-canal-kubeadm-ha.yml

@@ -8,3 +8,6 @@ calico_datastore: etcd
 kube_network_plugin: canal
 deploy_netchecker: true
 dns_min_replicas: 1
+
+# Ubuntu 16 packages for containerd are limited to 1.4.6
+containerd_version: 1.4.6

tests/files/packet_ubuntu16-canal-sep.yml

@@ -8,3 +8,6 @@ calico_datastore: etcd
 kube_network_plugin: canal
 deploy_netchecker: true
 dns_min_replicas: 1
+
+# Ubuntu 16 packages for containerd are limited to 1.4.6
+containerd_version: 1.4.6

tests/files/packet_ubuntu16-flannel-ha.yml

@@ -10,3 +10,6 @@ kubeadm_certificate_key: 3998c58db6497dd17d909394e62d515368c06ec617710d02edea31c
 skip_non_kubeadm_warning: true
 deploy_netchecker: true
 dns_min_replicas: 1
+
+# Ubuntu 16 packages for containerd are limited to 1.4.6
+containerd_version: 1.4.6

tests/files/packet_ubuntu16-kube-router-sep.yml

@@ -8,3 +8,6 @@ bootstrap_os: ubuntu
 kube_network_plugin: kube-router
 deploy_netchecker: true
 dns_min_replicas: 1
+
+# Ubuntu 16 packages for containerd are limited to 1.4.6
+containerd_version: 1.4.6

tests/files/packet_ubuntu16-kube-router-svc-proxy.yml

@@ -10,3 +10,6 @@ deploy_netchecker: true
 dns_min_replicas: 1
 
 kube_router_run_service_proxy: true
+
+# Ubuntu 16 packages for containerd are limited to 1.4.6
+containerd_version: 1.4.6

tests/files/packet_ubuntu16-weave-sep.yml

@@ -9,3 +9,6 @@ deploy_netchecker: true
 dns_min_replicas: 1
 
 auto_renew_certificates: true
+
+# Ubuntu 16 packages for containerd are limited to 1.4.6
+containerd_version: 1.4.6