Automatically resolve AMI ID to use

prepare-vms/scripts/find-ubuntu-ami.sh

@@ -3,7 +3,7 @@
 
 usage() {
     cat >&2 <<__
-usage: find-ubuntu-ami.sh [ <filter>... ] [ <sorting> ]
+usage: find-ubuntu-ami.sh [ <filter>... ] [ <sorting> ] [ <options> ]
 where:
     <filter> is pair of key and substring to search
         -r <region>
@@ -14,7 +14,7 @@ where:
         -d <date>
         -i <image>
         -k <kernel>
-    <sorting> is on of:
+    <sorting> is one of:
         -R   by region 
         -N   by name 
         -V   by version 
@@ -23,6 +23,8 @@ where:
         -D   by date 
         -I   by image 
         -K   by kernel 
+    <options> can be:
+        -q   just show AMI
 
     protip for Docker orchestration workshop admin:
         ./find-ubuntu-ami.sh -t hvm:ebs -r \$AWS_REGION -v 15.10 -N
@@ -30,7 +32,7 @@ __
     exit 1
 }
 
-args=`getopt hr:n:v:a:t:d:i:k:RNVATDIK $*`
+args=`getopt hr:n:v:a:t:d:i:k:RNVATDIKq $*`
 if [ $? != 0 ] ; then
     echo >&2
     usage
@@ -47,6 +49,8 @@ kernel=
 
 sort=date
 
+quiet=
+
 set -- $args
 for a ; do
     case "$a" in
@@ -69,6 +73,8 @@ for a ; do
         -D) sort=date ;;
         -I) sort=image ;;
         -K) sort=kernel ;;
+
+        -q) quiet=y ;;
         
         --) shift ; break ;;
         *) continue ;;
@@ -119,13 +125,17 @@ escape_spaces() {
 url=http://cloud-images.ubuntu.com/locator/ec2/releasesTable
 
 {
-    echo REGION NAME VERSION ARCH TYPE DATE IMAGE KERNEL
+    [ "$quiet" ] || echo REGION NAME VERSION ARCH TYPE DATE IMAGE KERNEL
     curl -s $url | fix_json | jq "`jq_query`" | trim_quotes | escape_spaces | tr \| ' '
 } |
     while read region name version arch type date image kernel ; do
         image=${image%<*}
         image=${image#*>}
-        echo "$region|$name|$version|$arch|$type|$date|$image|$kernel"
+        if [ "$quiet" ]; then
+            echo $image
+        else
+            echo "$region|$name|$version|$arch|$type|$date|$image|$kernel"
+        fi
     done | column -t -s \|
 
 

prepare-vms/scripts/trainer-cli

@@ -192,7 +192,7 @@ sync_keys() {
 }
 
 suggest_amis() {
-    scripts/find-ubuntu-ami.sh -r $AWS_DEFAULT_REGION -a amd64 -v 16.04 -t hvm:ebs -N
+    scripts/find-ubuntu-ami.sh -r $AWS_DEFAULT_REGION -a amd64 -v 16.04 -t hvm:ebs -N -q
 }
 
 get_token() {
@@ -203,30 +203,7 @@ get_token() {
 }
 
 get_ami() {
-    # using find-ubuntu-ami script in `trainer-tools/scripts`:
-    #AMI=$(./scripts/find-ubuntu-ami.sh -r $AWS_DEFAULT_REGION -a amd64 -v 15.10 -t hvm:ebs -N | grep -v ^REGION | head -1 | awk '{print $7}')
-    #AMI=$(suggest_amis | grep -v ^REGION | head -1 | awk '{print $7}')
-    case $AWS_DEFAULT_REGION in
-    eu-central-1)
-      AMI=ami-82cf0aed
-      ;;
-    eu-west-1)
-      AMI=ami-07174474
-      ;;
-    us-east-1)
-      AMI=ami-2808313f
-      ;;
-    us-east-2)
-      AMI=ami-1b772d7e
-      ;;
-    us-west-1)
-      AMI=ami-dab5e0ba
-      ;;
-    us-west-2)
-      AMI=ami-9ee24ffe
-      ;;
-    esac
-    echo $AMI
+    suggest_amis | head -1
 }