Move to Ubuntu 19.10 (trailofbits#1702)

* 19.04 is dead, long live 19.10

* Remove 19.04 from tests

* Update docs

* Set proper Azure name

.github/workflows/main.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-16.04
     strategy:
       matrix:
-        UBUNTU_VERSION: ["18.04", "19.04", "19.10"]
+        UBUNTU_VERSION: ["18.04", "19.10"]
     steps:
       - uses: actions/checkout@v1
       - uses: actions/setup-python@v1
@@ -99,7 +99,7 @@ jobs:
     runs-on: ubuntu-16.04
     strategy:
       matrix:
-        UBUNTU_VERSION: ["18.04", "19.04", "19.10"]
+        UBUNTU_VERSION: ["18.04", "19.10"]
     steps:
       - uses: actions/checkout@v1
       - uses: actions/setup-python@v1

config.cfg

@@ -149,10 +149,10 @@ SSH_keys:
 cloud_providers:
   azure:
     size: Standard_B1S
-    image: 19.04
+    image: 19.10-DAILY
   digitalocean:
     size: s-1vcpu-1gb
-    image: "ubuntu-19-04-x64"
+    image: "ubuntu-19-10-x64"
   ec2:
     # Change the encrypted flag to "false" to disable AWS volume encryption.
     encrypted: true
@@ -161,11 +161,11 @@ cloud_providers:
     use_existing_eip: false
     size: t2.micro
     image:
-      name: "ubuntu-disco-19.04"
+      name: "ubuntu-eoan-19.10"
       owner: "099720109477"
   gce:
     size: f1-micro
-    image: ubuntu-1904
+    image: ubuntu-1910
     external_static_ip: false
   lightsail:
     size: nano_1_0
@@ -182,10 +182,10 @@ cloud_providers:
     image:  Ubuntu-18.04
   cloudstack:
     size: Micro
-    image: Linux Ubuntu 19.04 64-bit
+    image: Linux Ubuntu 19.10 64-bit
     disk: 10
   vultr:
-    os: Ubuntu 19.04 x64
+    os: Ubuntu 19.10 x64
     size: 1024 MB RAM,25 GB SSD,1.00 TB BW
   local:
 

docs/deploy-to-unsupported-cloud.md

@@ -2,7 +2,7 @@
 
 Algo officially supports the [cloud providers listed here](https://github.com/trailofbits/algo/blob/master/README.md#deploy-the-algo-server). If you want to deploy Algo on another virtual hosting provider, that provider must support:
 
-1. the base operating system image that Algo uses (Ubuntu 18.04, 19.04, or 19.10), and
+1. the base operating system image that Algo uses (Ubuntu 18.04 or 19.10), and
 2. a minimum of certain kernel modules required for the strongSwan IPsec server.
 
 Please see the [Required Kernel Modules](https://wiki.strongswan.org/projects/strongswan/wiki/KernelModules) documentation from strongSwan for a list of the specific required modules and a script to check for them. As a first step, we recommend running their shell script to determine initial compatibility with your new hosting provider.