Make running the stack work locally (#55)

* Do not check triton config for local setup

* Log how to run stack locally

- If docker is unconfigured (default)

* Remove exports from setup-tools

- Don't pollute the environment with these functions.  This file is
sourced so they will still be available

* Fix linting errors and make code style consistent

* Fix docker check when DOCKER_HOST is set

* Make setup work whe triton env vars are not set

* Document setup step

README.md

@@ -1,5 +1,10 @@
 # Joyent Dashboard
 
+## Setup
+
+```sh
+./bin/setup
+```
 ## Installation
 
 To run the stack locally:

bin/setup

@@ -18,6 +18,6 @@ readonly INCLUDE="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # Main
 #
 ensure_prerequisites
-ensure_docker_config_matches_triton_config_and_capture_triton_details
-ensure_triton_cns_is_enabled
+get_triton_details
+check_docker_config
 write_env_file

bin/setup-tools

@@ -16,7 +16,7 @@ IFS=$'\n\t'
 # Utilities
 #
 die() {
-  local msg="$@"
+  local msg="$*"
   [[ -z "${msg}" ]] || {
     echo
     tput setaf 1  # red
@@ -37,51 +37,69 @@ ensure_command() {
     die "Couldn't find required command: ${cmd}"
   }
 }
-export -f ensure_command
 
 get_triton_details() {
   TRITON_USER=$(triton profile get | awk -F": " '/account:/{print $2}')
   TRITON_DC=$(triton profile get | awk -F"/" '/url:/{print $3}' | awk -F'.' '{print $1}')
+  TRITON_URL=$(triton profile get | awk -F' ' '/url:/{print $2}')
   TRITON_ACCOUNT=$(triton account get | awk -F": " '/id:/{print $2}')
+  TRITON_KEY=$(triton profile get | awk -F' ' '/keyId:/{print $2}')
+}
+
+check_docker_config() {
+  [[ "${DOCKER_HOST:=unset}" == "unset" ]] && {
+    echo "Run \"docker-compose -f local-compose.yml\" up to run locally"
+    return 0
+  }
+
+  return 0
 }
-export -f get_triton_details
 
 ensure_docker_config_matches_triton_config_and_capture_triton_details() {
-  local docker_user=$(docker info 2>&1 | awk -F": " '/SDCAccount:/{print $2}')
-  local docker_dc=$(echo $DOCKER_HOST | awk -F"/" '{print $3}' | awk -F'.' '{print $1}')
+  local docker_user
+  docker_user=$(docker info 2>&1 | awk -F": " '/SDCAccount:/{print $2}')
+  local docker_dc
+  docker_dc="$(echo "${DOCKER_HOST}" | awk -F"/" '{print $3}' | awk -F'.' '{print $1}')"
   get_triton_details
-  if [[ ! "$docker_user" = "$TRITON_USER" ]] || [[ ! "$docker_dc" = "$TRITON_DC" ]]; then
+  [[ ! "$docker_user" = "$TRITON_USER" ]] || [[ ! "$docker_dc" = "$TRITON_DC" ]] && {
     echo "Docker user: ${docker_user}"
     echo "Triton user: ${TRITON_USER}"
     echo "Docker data center: ${docker_dc}"
     echo "Triton data center: ${TRITON_DC}"
-    die "Your Triton configuration does not match your Docker configuration."
-  fi
+    die "Your Triton config does not match your Docker configuration." 
+  }
+
+  return 0;
 }
-export -f ensure_docker_config_matches_triton_config_and_capture_triton_details
 
 ensure_triton_cns_is_enabled() {
-  local triton_cns_enabled=$(triton account get | awk -F": " '/cns/{print $2}')
+  local triton_cns_enabled
+  triton_cns_enabled=$(triton account get | awk -F": " '/cns/{print $2}')
   [[ "$triton_cns_enabled" == "true" ]] || {
     die "Triton CNS is required and not enabled."
   }
 }
-export -f ensure_triton_cns_is_enabled
 
 write_env_file() {
-  [[ -f .env ]] || {
+  if [[ -f .env ]] ; then
+    echo "Env file already exists, not overwriting"
+  else
     echo '# Consul discovery via Triton CNS' >> .env
-    echo CONSUL=consul.svc.${TRITON_ACCOUNT}.${TRITON_DC}.cns.joyent.com >> .env
-    echo SDC_KEY_ID=${SDC_KEY_ID} >> .env
-    echo SDC_ACCOUNT=${SDC_ACCOUNT} >> .env
-    echo SDC_URL=${SDC_URL} >> .env
+    [[ "${DOCKER_HOST:=unset}" == "*docker.joyent.com*" ]] || {
+      echo CONSUL="consul.svc.${TRITON_ACCOUNT}.${TRITON_DC}.cns.joyent.com" \
+      >> .env
+    }
+    echo SDC_KEY_ID=${TRITON_KEY} >> .env
+    echo SDC_ACCOUNT=${TRITON_ACCOUNT} >> .env
+    echo SDC_URL=${TRITON_URL} >> .env
     echo >> .env
+  fi
 }
-}
-export -f write_env_file
 
 ensure_prerequisites() {
   ensure_command docker
   ensure_command docker-compose
   ensure_command triton
 }
+
+# vim: syntax=sh et ts=2 sts=2 sw=2