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Installing docker on vps ubuntu 16.04

Hi,

I have an OpenVZ VPS running Ubuntu 16.04. have been having serious difficulty in installing docker. is there any guidance or working resources available.

[root@TestSRV ~]# dockerd
INFO[2019-06-12T18:05:55.327459824Z] parsed scheme: “unix” module=grpc
INFO[2019-06-12T18:05:55.328015695Z] scheme “unix” not registered, fallback to default scheme module=grpc
INFO[2019-06-12T18:05:55.328304373Z] ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock 0 }] } module=grpc
INFO[2019-06-12T18:05:55.328555368Z] ClientConn switching balancer to “pick_first” module=grpc
INFO[2019-06-12T18:05:55.328835055Z] pickfirstBalancer: HandleSubConnStateChange: 0xc0005c89f0, CONNECTING module=grpc
INFO[2019-06-12T18:05:55.329501474Z] blockingPicker: the picked transport is not ready, loop back to repick module=grpc
INFO[2019-06-12T18:05:55.330309337Z] pickfirstBalancer: HandleSubConnStateChange: 0xc0005c89f0, READY module=grpc
INFO[2019-06-12T18:05:55.331506477Z] parsed scheme: “unix” module=grpc
INFO[2019-06-12T18:05:55.331858335Z] scheme “unix” not registered, fallback to default scheme module=grpc
INFO[2019-06-12T18:05:55.332086788Z] ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock 0 }] } module=grpc
INFO[2019-06-12T18:05:55.332345747Z] ClientConn switching balancer to “pick_first” module=grpc
INFO[2019-06-12T18:05:55.332796156Z] pickfirstBalancer: HandleSubConnStateChange: 0xc000678a40, CONNECTING module=grpc
INFO[2019-06-12T18:05:55.333551809Z] blockingPicker: the picked transport is not ready, loop back to repick module=grpc
INFO[2019-06-12T18:05:55.334075080Z] pickfirstBalancer: HandleSubConnStateChange: 0xc000678a40, READY module=grpc
INFO[2019-06-12T18:05:55.356732439Z] [graphdriver] using prior storage driver: overlay2
INFO[2019-06-12T18:05:55.359583822Z] Loading containers: start.
WARN[2019-06-12T18:05:55.364252599Z] Running modprobe bridge br_netfilter failed with message: , error: exit status 1
WARN[2019-06-12T18:05:55.367214598Z] Running modprobe nf_nat failed with message: , error: exit status 1 WARN[2019-06-12T18:05:55.370144031Z] Running modprobe xt_conntrack failed with message:, error: exit status 1
failed to start daemon: Error initializing network controller: error obtaining controller instance: failed to create NAT chain DOCKER: iptables failed: iptables --wait -t nat -N DOCKER: iptables v1.4.21: can’t initialize iptables table `nat’: Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
(exit status 3)
[root@TestSRV ~]#