Re: "Failed to connect to Postgres database"

On 9/28/19 12:07 AM, Marco Ippolito wrote:
> Hi Adrian,
>
> Il giorno ven 27 set 2019 alle ore 21:39 Adrian Klaver
> <adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>> ha scritto:
>
> On 9/27/19 11:02 AM, Marco Ippolito wrote:
> > Thank you very much Adrian.
> > Two things:
> >
> > 1)
> >   Why if I just specify through port the cluster and the host
> connection
> > I connect correctly with SSL,
> >   but if I specify also the database and the user it connects it
> doesn't
> > usel SSL connection, or at least it doesn't say it uses SSL? :
>
>
> Can you show the contents of  pg_hba.conf file for the 11/fabmnet
> cluster. The file will be in:
>
> /etc/postgresql/11/fabmnet/
>
>
>
>
> /etc/postgresql/11/fabmnet/pg_hba.conf  :
>
> # Database administrative login by Unix domain socket
> local   all             postgres                                peer
>
> # TYPE  DATABASE        USER            ADDRESS                 METHOD
>
> # "local" is for Unix domain socket connections only
> local   all             all                                     peer
> # IPv4 local connections:
> host    all             all 127.0.0.1/32 <http://127.0.0.1/32>
>  md5
>
> # Allow connections from localhost only to fabmnet_ca for postgres user
> hostssl fabmnet_ca      postgres        localhost               cert
>
> # IPv6 local connections:
> host    all             all             ::1/128                 md5
> # Allow replication connections from localhost, by a user with the
> # replication privilege.
> local   replication     all                                     peer
> host    replication     all 127.0.0.1/32 <http://127.0.0.1/32>
>  md5
> host    replication     all             ::1/128                 md5
>

> fabric-ca-server-config.yaml : sslmode=require
> db:
>   type: postgres
>   datasource: host=localhost port=5433 user=postgres password=1234
> dbname=fabmnet_ca sslmode=require
>   tls:
>       enabled: false
>       certfiles:
>       client:
>         certfile:
>         keyfile:

You are not including the certs or setting tls.enabled: true. Not sure
that is the root cause at the moment.

I would try just going through psql for the time being to take the
fabric server out of the loop. Something like:

psql "host=localhost port=5433 dbname=fabmnet_ca user=postgres
sslmode=require"

From below I am guessing you do not have the SSL certs setup properly
for the fabmnet Postgres instance(the one on port 5433) and/or on the
client. Take a look at:

https://www.postgresql.org/docs/11/libpq-ssl.html

>
>
> (base) marco(at)pc:~/fabric/fabric-ca$ fabric-ca-server init -b admin:adminpw
> 2019/09/28 09:00:08 [INFO] Configuration file location:
> /home/marco/fabric/fabric-ca/fabric-ca-server-config.yaml
> 2019/09/28 09:00:08 [INFO] Server Version: 1.4.4
> 2019/09/28 09:00:08 [INFO] Server Levels: &{Identity:2 Affiliation:1
> Certificate:1 Credential:1 RAInfo:1 Nonce:1}
> 2019/09/28 09:00:08 [INFO] The CA key and certificate already exist
> 2019/09/28 09:00:08 [INFO] The key is stored by BCCSP provider 'SW'
> 2019/09/28 09:00:08 [INFO] The certificate is at:
> /home/marco/fabric/fabric-ca/ca-cert.pem
> 2019/09/28 09:00:08 [WARNING] Failed to connect to database 'fabmnet_ca'
> 2019/09/28 09:00:08 [ERROR] Error occurred initializing database: Failed
> to create Postgres tables: Error creating users table: pq: client
> certificates can only be checked if a root certificate store is available
> 2019/09/28 09:00:08 [INFO] Home directory for default CA:
> /home/marco/fabric/fabric-ca
> 2019/09/28 09:00:08 [INFO] Initialization was successful
>
>
> /var/log/postgresql/postgresql-11-fabmnet.log  :
>
> 2019-09-28 09:00:08.634 CEST [4226] postgres(at)fabmnet_ca FATAL:  client
> certificates can only be checked if a root certificate store is available
> 2019-09-28 09:00:08.641 CEST [4227] postgres(at)postgres ERROR:  database
> "fabmnet_ca" already exists
> 2019-09-28 09:00:08.641 CEST [4227] postgres(at)postgres STATEMENT:  CREATE
> DATABASE fabmnet_ca
> 2019-09-28 09:00:08.644 CEST [4228] postgres(at)fabmnet_ca FATAL:  client
> certificates can only be checked if a root certificate store is available
> 2019-09-28 09:00:08.650 CEST [4227] postgres(at)postgres LOG:  could not
> receive data from client: Connection reset by peer
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com