Change envrc to .env (#483)

## Description

The setup scripts in `tinkerbell/tink` are different from that of `tinkerbell/sandbox`.

## Why is this needed

Fixes: #481

.gitignore

@@ -14,4 +14,5 @@ terraform.tfstate.backup
 # Vagrant
 **/.vagrant
 envrc
+.env
 deploy/state

deploy/vagrant/scripts/tinkerbell.sh

@@ -98,12 +98,12 @@ main() (
 	ensure_docker_exists
 	ensure_docker-compose_exists
 
-	if [ ! -f ./envrc ]; then
-		./generate-envrc.sh eth1 >envrc
+	if [ ! -f ./.env ]; then
+		./generate-env.sh eth1 >.env
 	fi
 
 	# shellcheck disable=SC1091
-	. ./envrc
+	. ./.env
 
 	make_certs_writable
 

generate-envrc.sh → generate-env.sh

@@ -42,7 +42,7 @@ generate_password() (
 	head -c 12 /dev/urandom | sha256sum | cut -d' ' -f1
 )
 
-generate_envrc() (
+generate_env() (
 	local tink_interface=$1
 
 	validate_tinkerbell_network_interface "$tink_interface"
@@ -85,11 +85,11 @@ EOF
 
 main() (
 	if [ -z "${1:-}" ]; then
-		err "Usage: $0 network-interface-name > envrc"
+		err "Usage: $0 network-interface-name > .env"
 		exit 1
 	fi
 
-	generate_envrc "$1"
+	generate_env "$1"
 )
 
 main "$@"

setup.sh

@@ -8,7 +8,7 @@ set -eu
 # See https://tinkerbell.org/setup for the installation steps.
 
 # file to hold all environment variables
-ENV_FILE=envrc
+ENV_FILE=.env
 
 SCRATCH=$(mktemp -d -t tmp.XXXXXXXXXX)
 readonly SCRATCH
@@ -480,7 +480,7 @@ check_prerequisites() (
 )
 
 whats_next() (
-	echo "$NEXT  1. Enter /vagrant/deploy and run: source ../envrc; docker-compose up -d"
+	echo "$NEXT  1. Enter /vagrant/deploy and run: source ../.env; docker-compose up -d"
 	echo "$BLANK 2. Try executing your first workflow."
 	echo "$BLANK    Follow the steps described in https://tinkerbell.org/examples/hello-world/ to say 'Hello World!' with a workflow."
 )
@@ -500,7 +500,7 @@ do_setup() (
 	check_prerequisites "$lsb_dist" "$lsb_version"
 
 	if [ ! -f "$ENV_FILE" ]; then
-		echo "$ERR Run './generate-envrc.sh network-interface > \"$ENV_FILE\"' before continuing."
+		echo "$ERR Run './generate-env.sh network-interface > \"$ENV_FILE\"' before continuing."
 		exit 1
 	fi