# Deploying Airflow With Turbine Cloud Formation Steps

Dependencies:
1. aws cli - https://aws.amazon.com/cli/
2. jq - https://stedolan.github.io/jq/

```bash
# Change this if you have a different S3 bucket
export DEPLOYMENT_BUCKET=
export DEPLOYMENT_REGION=

aws configure set default.region $DEPLOYMENT_REGION

aws s3 mb s3://$DEPLOYMENT_BUCKET

rm -r -f aws-airflow-stack && git clone --recursive git@github.com:villasv/aws-airflow-stack.git

zip aws-airflow-stack/functions/package.zip aws-airflow-stack/functions/load_metric.py

aws s3 cp aws-airflow-stack s3://$DEPLOYMENT_BUCKET/quickstart-turbine-airflow  --recursive

aws cloudformation create-stack \
    --stack-name airflow-$(python -c "import uuid; print(str(uuid.uuid4()))") \
    --template-url https://$DEPLOYMENT_BUCKET.s3.amazonaws.com/quickstart-turbine-airflow/templates/turbine-master.template \
    --parameters ParameterKey=QSS3BucketName,ParameterValue=$DEPLOYMENT_BUCKET ParameterKey=WorkerInstanceType,ParameterValue=t3.2xlarge ParameterKey=SchedulerInstanceType,ParameterValue=t3.small \
    --capabilities CAPABILITY_IAM CAPABILITY_NAMED_IAM

CREATE_IN_PROGRESS="CREATE_IN_PROGRESS"
STACK_PROGRESS="CREATE_IN_PROGRESS"
printf 'Creating Stack'
while [ "$STACK_PROGRESS" = "$CREATE_IN_PROGRESS" ]; do printf '.'; sleep 5; STACK_PROGRESS=$(aws cloudformation describe-stacks | jq '.Stacks[] |  select(.StackId | test("airflow.")) | select(.ParentId == null and .DeletionTime == null) .StackStatus' -r); done

export AIRFLOW_UI=$(
    aws ec2 describe-instances --filters Name=tag:Name,Values=turbine-webserver Name=instance-state-code,Values=16 --query 'Reservations[].Instances[].PublicDnsName'| jq '.[0]' -r)
echo
echo opening http://$AIRFLOW_UI:8080
open http://$AIRFLOW_UI:8080

echo "Create a Pipeline here https://$DEPLOYMENT_REGION.console.aws.amazon.com/codesuite/codepipeline/pipelines"
open https://$DEPLOYMENT_REGION.console.aws.amazon.com/codesuite/codepipeline/pipelines
```
# Create Password User Inside the EC2
```bash
export $(xargs </etc/sysconfig/airflow) && python3
```
```python
from airflow import models, settings
from airflow.contrib.auth.backends.password_auth import PasswordUser
user = PasswordUser(models.User())
user.username = 'insights'
user.email = 'rafael.mello@movember.com'
user.superuser = True
user.password = 
session = settings.Session()
session.add(user)
session.commit()
session.close()
exit()
```

# Bringing it down
```bash
export STACKID=$(aws cloudformation describe-stacks | jq '.Stacks[] |  select(.StackId | test("airflow.")) | select(.ParentId == null and .DeletionTime == null) .StackId' -r)
echo shutting down $STACKID
aws cloudformation delete-stack --stack-name $STACKID && rm dbpassword.txt
```

# Running Commands
```bash
export $(xargs </etc/sysconfig/airflow)
airflow [COMMAND]
```

# Seeing Logs
```bash
sudo journalctl -u airflow --follow
```