Microk8s : cannot ping outside pods

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Hello, I’m using microk8s installed on my ubuntu server. and I try to ping outside from my pod

I have docker installed on my machine: when I run a container with docker I can ping outside :

~$ sudo ip addr show docker0
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether 02:42:a7:9f:15:48 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:a7ff:fe8f:1548/64 scope link
       valid_lft forever preferred_lft forever

on the container :

~$ sudo docker run --rm -it ubuntu:trusty bash
root@dd0af86b1209:/# ip addr show eth0
158: eth0@if159: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0
       valid_lft forever preferred_lft forever
root@dd0af86b1209:/# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
158: eth0@if159: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0
       valid_lft forever preferred_lft forever
root@dd0af86b1209:/# ping google.com
PING google.com (142.250.179.110) 56(84) bytes of data.
64 bytes from par21s20-in-f14.1e100.net (142.250.179.110): icmp_seq=1 ttl=108 time=3.71 ms
64 bytes from par21s20-in-f14.1e100.net (142.250.179.110): icmp_seq=2 ttl=108 time=3.70 ms
64 bytes from par21s20-in-f14.1e100.net (142.250.179.110): icmp_seq=3 ttl=108 time=3.74 ms
64 bytes from par21s20-in-f14.1e100.net (142.250.179.110): icmp_seq=4 ttl=108 time=3.75 ms
64 bytes from par21s20-in-f14.1e100.net (142.250.179.110): icmp_seq=5 ttl=108 time=3.76 ms

but on my pod with microk8s I can’t ping outside :

/ # ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
3: eth0@if146: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1440 qdisc noqueue state UP
    link/ether ba:03:bd:4b:66:97 brd ff:ff:ff:ff:ff:ff
    inet 172.17.159.19/32 brd 172.17.159.19 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::b803:bdff:fe44:6697/64 scope link
       valid_lft forever preferred_lft forever

/ # ping google.com
ping: bad address 'google.com'

ufw status :

Anywhere (v6) on cali+     ALLOW       Anywhere (v6)
Anywhere (v6) on cni0      ALLOW       Anywhere (v6)
Anywhere (v6) on cbr0      ALLOW       Anywhere (v6)
Anywhere (v6) on eth0      ALLOW       Anywhere (v6)

Thanks in advance for your answers