Hi Jed,

When I first had this working, I was able too connect to our local database 
without password. I set the IP address the docker-airflow was trying to connect 
with (I believe it was a 172.18.*.*/16) in pg_hba.conf as trust. However, I 
will try logging in via username and password and see if that fixed the issue. 
It’s worth a shot.

Not sure why it worked last week. Weird.

Anthony

On Aug 16, 2021, at 12:47 PM, Jed Cunningham 
<[email protected]<mailto:[email protected]>> wrote:

You don't often get email from [email protected]<mailto:[email protected]>. 
Learn why this is important<http://aka.ms/LearnAboutSenderIdentification>
Your SQL_ALCHEMY_CONN doesn't have a password? Intentional? Did you redact that 
and forget to replace it with `{pass}`?

On Mon, Aug 16, 2021 at 9:26 AM Anthony Joyce 
<[email protected]<mailto:[email protected]>> wrote:
Sorry, that was on purpose. I redacted the host name and substituted for {host}.

Sent from my iPhone

On Aug 16, 2021, at 11:23 AM, Jarek Potiuk 
<[email protected]<mailto:[email protected]>> wrote:


I am almost certain that you have the "{host}" things wrong. It looks like you 
are actually trying to connect to "{host}" dns name - I presume you want to 
actually put "real" hostname there or at use it from a variable of sorts, but 
it seems that this did not happen.

On Mon, Aug 16, 2021 at 4:33 PM Anthony Joyce 
<[email protected]<mailto:[email protected]>> wrote:
Hi All,

Thank you for the help I have been provided on my last email. I am stuck yet 
again and do not have many areas to turn to so I figured I would email the 
listserv again.

Airflow seems to be stuck initializing using docker-compose up airflow-init.

$ docker-compose up airflow-init
airflow-docker_redis_1 is up-to-date
Recreating airflow-docker_postgres_1 ... done
Recreating airflow-docker_airflow-init_1 ... done
Attaching to airflow-docker_airflow-init_1
airflow-init_1       | BACKEND=postgresql+psycopg2
airflow-init_1       | DB_HOST={host}
airflow-init_1       | DB_PORT=5432

I am using an already existing backend from our current local postgresql 
database. Weirdly enough, I had this working last Monday. I made a slight 
change to my docker-compose.yaml file (added extra_hosts to the yaml, ran it, 
got an error than removed it) and tried to reinitialized the container only for 
airflow-init to hang.

I stumbled upon this stack overflow page: 
https://stackoverflow.com/questions/68415456/docker-compose-up-airflow-init-hangs-no-network-connection-between-containers
 and looked at every step this user did. Everything checks out OK with me as 
well.

The container builds using the default settings but does not build anymore with 
my custom AIRFLOW__CORE__SQL_ALCHEMY_CONN: 
postgresql+psycopg2://airflow:@{host}:5432/airflow. Also, my postgresql db is 
configured correctly listening on all IP addresses other than localhost. IP’s 
added to pg_hba.conf. IPtables looks good with no conflicts in firewall 
services. We are just using one from what I can tell.

I’ve uninstalled completely and reinstalled. No change. I even set daemon.json 
to not use IPV6…still no change. I feel as if I’ve tried everything with no 
luck.

If anyone has experienced this behavior before and offer some insight, that 
would be wonderful. Otherwise, I’ll continue to troubleshoot.

Thanks all.




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