Migrate from Terraform Cloud to "Remote" storage backend

migrate.sh

export TFC_TOKEN=<CHANGEME> # TF cloud token
export WORKSPACE_ID=<CHANGEME> # old TF cloud Workspace ID

export WORKSPACE_ID_NEW=<CHANGEME> # new OTF workspace ID
export TOKEN_REMOTE_BACKEND=<CHANGEME> # OTF token
export REMOTE_BACKEND_URL=<CHANGEME> # OTF URL

### START
HTTP_RESPONSE=$(curl \
	--header "Authorization: Bearer "$TFC_TOKEN"" \
	--header "Content-Type: application/vnd.api+json" \
	"https://app.terraform.io/api/v2/workspaces/"$WORKSPACE_ID"/current-state-version" | jq -r '.data | .attributes | ."hosted-state-download-url"')

curl -o state.tfstate $HTTP_RESPONSE

SERIAL_OLD=$(cat state.tfstate | jq -r '.serial')
SERIAL_NEW=$(($SERIAL_OLD + 1))

# create state fle with new serial
cat state.tfstate | jq '.serial = '$SERIAL_NEW'' >state.tfstate.new

### Create payload

serial=$(cat state.tfstate.new | jq '.serial')
md5_compute=$(md5 -q state.tfstate.new)
md5=\"$md5_compute\"
lineage=$(cat state.tfstate.new | jq '.lineage')
base64_encode=$(base64 -i state.tfstate.new)
state=\"$base64_encode\"

echo "{
   \"data\": {
   \"type\": \"state-versions\",
     \"attributes\": {
       \"serial\": $serial,
       \"md5\": "$md5",
       \"lineage\": "$lineage",
       \"state\": "$state"
     }
   }
 }" >payload.json

# Upload new state file
HTTP_POST=$(curl \
	--header "Authorization: Bearer "$TOKEN_REMOTE_BACKEND"" \
	--header "Content-Type: application/vnd.api+json" \
	--request POST \
	--data @payload.json \
	"https://$REMOTE_BACKEND_URL/api/v2/workspaces/"$WORKSPACE_ID_NEW"/state-versions")

echo $HTTP_POST