diff --git a/docker/api/package.json b/docker/api/package.json
index 5bfac7f3..fd46194d 100644
--- a/docker/api/package.json
+++ b/docker/api/package.json
@@ -15,7 +15,7 @@
     "good": "^7.2.0",
     "good-console": "^6.4.0",
     "good-squeeze": "^5.0.2",
-    "graphi": "^2.2.1",
+    "graphi": "^2.3.0",
     "hapi": "^16.1.0",
     "hoek": "^4.1.1",
     "joi": "^10.6.0",
diff --git a/setup.sh b/setup.sh
index b7ab92aa..b1792134 100755
--- a/setup.sh
+++ b/setup.sh
@@ -1,9 +1,44 @@
 #!/bin/bash
 set -e -o pipefail
 
+help() {
+    echo
+    echo 'Usage ./setup.sh ~/path/to/TRITON_PRIVATE_KEY'
+    echo
+    echo 'Checks that your Triton and Docker environment is sane and configures'
+    echo 'an environment file to use.'
+    echo
+    echo 'TRITON_PRIVATE_KEY is the filesystem path to an SSH private key'
+    echo 'used to connect to Triton.'
+    echo
+}
+
 # Check for correct configuration
 check() {
 
+    if [ -z "$1" ]; then
+        tput rev  # reverse
+        tput bold # bold
+        echo 'Please provide a path to a SSH private key to access Triton.'
+        tput sgr0 # clear
+
+        help
+        exit 1
+    fi
+
+    if [ ! -f "$1" ]; then
+        tput rev  # reverse
+        tput bold # bold
+        echo 'SSH private key for Triton is unreadable.'
+        tput sgr0 # clear
+
+        help
+        exit 1
+    fi
+
+    # Assign args to named vars
+    TRITON_PRIVATE_KEY_PATH=$1
+
     command -v docker >/dev/null 2>&1 || {
         echo
         tput rev  # reverse
@@ -46,20 +81,36 @@ check() {
     echo TRITON_KEY_PATH=${TRITON_CREDS_PATH}/key.pem >> _env
     echo TRITON_CERT=$(cat "${DOCKER_CERT_PATH}"/cert.pem | tr '\n' '#') >> _env
     echo TRITON_CERT_PATH=${TRITON_CREDS_PATH}/cert.pem >> _env
+    echo SDC_KEY=$(cat "${TRITON_PRIVATE_KEY_PATH}" | tr '\n' '#') >> _env
+    echo SDC_KEY_PUB=$(cat "${TRITON_PRIVATE_KEY_PATH}.pub" | tr '\n' '#') >> _env
     echo >> _env
-
-    for file in ~/.ssh/*.pub
-    do
-      SDC_KEY=$(ssh-keygen -E md5 -lf ${file} | awk '{print $2}' | awk -F"MD5:" '{print $2}')
-      if [ "$SDC_KEY" == "$SDC_KEY_ID" ]
-      then
-        echo SDC_KEY_PUB=$(cat "${file}" | tr '\n' '#') >> _env
-        priv_file=$(echo "${file}" | awk -F".pub" '{print $1}')
-        echo SDC_KEY=$(cat "${priv_file}" | tr '\n' '#') >> _env
-        break
-      fi
-    done
 }
 
-# default behavior
-check
+# ---------------------------------------------------
+# parse arguments
+
+# Get function list
+funcs=($(declare -F -p | cut -d " " -f 3))
+
+until
+    if [ ! -z "$1" ]; then
+        # check if the first arg is a function in this file, or use a default
+        if [[ " ${funcs[@]} " =~ " $1 " ]]; then
+            cmd=$1
+            shift 1
+        else
+            cmd="check"
+        fi
+
+        $cmd "$@"
+        if [ $? == 127 ]; then
+            help
+        fi
+
+        exit
+    else
+        help
+    fi
+do
+    echo
+done