update to latest Ubuntu 16.04-LTS image

[jackfrancis]

What this PR does / why we need it: Update to 16.04.201801050 image by default

Release note:

Ubuntu 16.04.201801050

[CecileRobertMichon]

lgtm, could you check if the new version is also the latest in the German cloud? Or add it as a separate todo.. It's 2 versions behind now :

acs-engine/pkg/acsengine/defaults.go

Line 103 in d2bbcce

ImageVersion: "16.04.201701130",

[jackfrancis]

@benkoller could you kindly check if there is a more recent version of Ubuntu 16.04-LTS in German cloud?

az vm image list -p Canonical -f UbuntuServer -s 16.04-LTS --all should work

[benkoller]

@jackfrancis The latest version is 16.04.201801050. For reference, the full list of images (newest at the bottom):

[
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201701130",
    "version": "16.04.201701130"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201703300",
    "version": "16.04.201703300"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201706191",
    "version": "16.04.201706191"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201707270",
    "version": "16.04.201707270"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201708030",
    "version": "16.04.201708030"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201708110",
    "version": "16.04.201708110"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201708151",
    "version": "16.04.201708151"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201709190",
    "version": "16.04.201709190"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201710110",
    "version": "16.04.201710110"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201710261",
    "version": "16.04.201710261"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201711072",
    "version": "16.04.201711072"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201711160",
    "version": "16.04.201711160"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201711211",
    "version": "16.04.201711211"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201712080",
    "version": "16.04.201712080"
  },
  {
    "offer": "UbuntuServer",
    "publisher": "Canonical",
    "sku": "16.04-LTS",
    "urn": "Canonical:UbuntuServer:16.04-LTS:16.04.201801050",
    "version": "16.04.201801050"
  }
]

[jackfrancis]

@benkoller Thanks so much! Are you able to test this PR:

#2036

(if not, just a thumbs up and we can move that forward)

[benkoller]

Sorry, wont be able to test for a while