Hi, This is my environment "Juno ml2 openvswitch vlan"

node1 - controller (controller+Network"Neutron")

node2 - compute1 (Hyperv)

node3 - compute2 (Hyperv)

My ubuntu image which i made manually (Vhd/Vhdx) is not getting metadata at boot and not renames hostname nor resize's root partition.

But the crazy part is that i can "curl" the metadata url "http://169.254.169.254/2009-04-04/meta-data/instance-id" ".../metadata/hostname" etc., from instance

Also hostname change of Windows instance(vm) in openstack with cloud-init is working good.

I have installed cloud-init, cloud-utils and tried pushing image into glance as both vhd and vhdx both had same result.

My complete log of cloud-init from my ubuntu instance is here link

The hostname DEBUG logs are as below.

• importer.py[DEBUG]: Failed at attempted import of 'cc_update_hostname' due to: No module named cc_update_hostname
• importer.py[DEBUG]: Found cc_update_hostname with attributes ['handle'] in ['cloudinit.config.cc_update_hostname']

It says "Found cc_update-hostname" above but it just keeps my default hostname "adminvm" which i used while creating image.

one more Warning in log

• url_helper.py[WARNING]: Calling 'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed [0/120s]: request error [HTTPConnectionPool(host='169.254.169.254', port=80): Max retries exceeded with url: /2009-04-04/meta-data/instance-id (Caused by <class 'socket.error'="">: [Errno 101] Network is unreachable)]
• DataSourceEc2.py[CRITICAL]: Giving up on md from ['http://169.254.169.254/2009-04-04/meta-data/instance-id'] after 126 seconds

Some Details about my network :

• eth0-->Managent_NIC
• eth1-->VM_DATA_NETWORK(br-eth1)
• eth2-->External_Network(br-ex)

Compute has eth0 and eth1(br-eth1) but instance(VM in compute) has port in eth1(i.e, br-eth1) alone

ovs-vsctl show (in node1)

57812622-2530-4afe-8f22-1bcf81ea7aff
    Bridge br-ex
        Port "eth2"
            Interface "eth2"
        Port br-ex
            Interface br-ex
                type: internal
        Port "qg-741aae57-35"
            Interface "qg-741aae57-35"
                type: internal
    Bridge br-int
        fail_mode: secure
        Port "int-br-eth1"
            Interface "int-br-eth1"
                type: patch
                options: {peer="phy-br-eth1"}
        Port "tap46945191-d3"
            tag: 2
            Interface "tap46945191-d3"
                type: internal
        Port "tapd7668caa-ea"
            tag: 1
            Interface "tapd7668caa-ea"
                type: internal
        Port br-int
            Interface br-int
                type: internal
        Port "qr-4cfdd1c9-73"
            tag: 1
            Interface "qr-4cfdd1c9-73"
                type: internal
    Bridge "br-eth1"
        Port "phy-br-eth1"
            Interface "phy-br-eth1"
                type: patch
                options: {peer="int-br-eth1"}
        Port "eth1"
            Interface "eth1"
        Port "br-eth1"
            Interface "br-eth1"
                type: internal
    ovs_version: "2.0.2"

/etc/neutron/metadata_agent.ini (in node1)

verbose = True   
auth_url = http://controller:5000/v2.0
auth_region = regionOne
admin_tenant_name = service
admin_user = neutron
admin_password = neutron_user_pass
nova_metadata_ip = controller
metadata_proxy_shared_secret = metadata_pass

/etc/nova/nova.conf (in node1)

[neutron]
...
service_metadata_proxy = True
metadata_proxy_shared_secret = metadata_pass
....

route -n (eth0 is Management interface node1)

Kernel IP routing table

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.1.3.9        0.0.0.0         UG    0      0        0 br-ex
10.1.3.0        0.0.0.0         255.255.255.0   U     0      0        0 br-ex
10.2.3.0        0.0.0.0         255.255.255.0   U     0      0        0 br-eth1
10.20.0.0       0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 eth0

ip ...