dev: Tweaks to cluster dev scripts

Consolidate all nomad data dir in a single root
`/tmp/nomad-dev-cluster`.  Eases clean up.

Allow running script from any path - don't require devs to cd into
`dev/cluster` directory first.

Also, block while nomad processes are running and prapogate
SIGTERM/SIGINT to nomad processes to shutdown.

dev/cluster/client1.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/client1"
+data_dir = "/tmp/nomad-dev-cluster/client1"
 
 # Give the agent a unique name. Defaults to hostname
 name = "client1"

dev/cluster/client2.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/client2"
+data_dir = "/tmp/nomad-dev-cluster/client2"
 
 # Give the agent a unique name. Defaults to hostname
 name = "client2"

dev/cluster/client3.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/client3"
+data_dir = "/tmp/nomad-dev-cluster/client3"
 
 # Give the agent a unique name. Defaults to hostname
 name = "client3"

dev/cluster/cluster.sh

@@ -1,17 +1,28 @@
 #!/usr/bin/env bash
 set -e
 
-mkdir -p /tmp/server{1,2,3} /tmp/client{1,2}
+mkdir -p /tmp/nomad-dev-cluster/server{1,2,3} /tmp/nomad-dev-cluster/client{1,2}
+
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 
 # launch server
-( nomad agent -config=server1.hcl 2>&1 | tee "/tmp/server1/log" ; echo "Exit code: $?" >> "/tmp/server1/log" ) &
+( nomad agent -config=${DIR}/server1.hcl 2>&1 | tee "/tmp/nomad-dev-cluster/server1/log" ; echo "Exit code: $?" >> "/tmp/nomad-dev-cluster/server1/log" ) &
 
-( nomad agent -config=server2.hcl 2>&1 | tee "/tmp/server2/log" ; echo "Exit code: $?" >> "/tmp/server2/log" ) &
+( nomad agent -config=${DIR}/server2.hcl 2>&1 | tee "/tmp/nomad-dev-cluster/server2/log" ; echo "Exit code: $?" >> "/tmp/nomad-dev-cluster/server2/log" ) &
 
-( nomad agent -config=server3.hcl 2>&1 | tee "/tmp/server3/log" ; echo "Exit code: $?" >> "/tmp/server3/log" ) &
+( nomad agent -config=${DIR}/server3.hcl 2>&1 | tee "/tmp/nomad-dev-cluster/server3/log" ; echo "Exit code: $?" >> "/tmp/nomad-dev-cluster/server3/log" ) &
 
 # launch client 1
-( nomad agent -config=client1.hcl 2>&1 | tee "/tmp/client1/log" ; echo "Exit code: $?" >> "/tmp/client1/log" ) &
+( nomad agent -config=${DIR}/client1.hcl 2>&1 | tee "/tmp/nomad-dev-cluster/client1/log" ; echo "Exit code: $?" >> "/tmp/nomad-dev-cluster/client1/log" ) &
 
 # launch client 2
-( nomad agent -config=client2.hcl 2>&1 | tee "/tmp/client2/log" ; echo "Exit code: $?" >> "/tmp/client2/log" ) &
+( nomad agent -config=${DIR}/client2.hcl 2>&1 | tee "/tmp/nomad-dev-cluster/client2/log" ; echo "Exit code: $?" >> "/tmp/nomad-dev-cluster/client2/log" ) &
+
+
+trap 'kill -SIGTERM $(jobs -pr)' SIGINT SIGTERM
+
+wait
+
+# wait again to ensure process die
+wait

dev/cluster/server-standalone.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/serverstandalone"
+data_dir = "/tmp/nomad-dev-cluster/serverstandalone"
 
 # Give the agent a unique name. Defaults to hostname
 name = "serverstandalone"

dev/cluster/server1.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/server1"
+data_dir = "/tmp/nomad-dev-cluster/server1"
 
 # Give the agent a unique name. Defaults to hostname
 name = "server1"

dev/cluster/server2.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/server2"
+data_dir = "/tmp/nomad-dev-cluster/server2"
 
 # Give the agent a unique name. Defaults to hostname
 name = "server2"

dev/cluster/server3.hcl

@@ -2,7 +2,7 @@
 log_level = "DEBUG"
 
 # Setup data dir
-data_dir = "/tmp/server3"
+data_dir = "/tmp/nomad-dev-cluster/server3"
 
 # Give the agent a unique name. Defaults to hostname
 name = "server3"