O Bitbucket não pode acessar o Postgres

O Bitbucket não pode acessar o Postgres

Instalei Docker e Bitbucket no Ubuntu 18.04 no VirtualBox com as seguintes especificações:

docker run \
-e JDBC_DRIVER=org.postgresql.Driver \
-e JDBC_USER=bitbucket \
-e JDBC_PASSWORD=bitbucket \
-e JDBC_URL=jdbc:postgresql://192.168.56.139:5432/bitbucket \
-v /data/bitbucket-shared:/var/atlassian/application-data/bitbucket \
--name="bitbucket" \
-d -p 7990:7990 -p 7999:7999 \
atlassian/bitbucket-server

Atualmente instalei o Postgresql, criei um banco de dados e um nome de usuário para o bitbucket. Adicionei no pg_hba.conf as seguintes linhas:

host    all             all             127.0.0.1/32            md5
host    all             all             192.168.56.139/32       md5
host    all             all             172.17.0.2/32           md5

Não tenho certeza se devo adicionar o endereço IP dos contêineres lá, mas adicionei mesmo assim. No postgresql.conf, editei a seguinte linha:

listen_address = '*'

Depois que o contêiner é iniciado, recebo a seguinte mensagem de erro no navegador:

The database, as currently configured, is not accessible.
Connection to 192.168.56.139:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

Não tenho nenhuma regra de iptables definida nesta VM. Embora eu esteja entendendo que o banco de dados está inacessível.

Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy DROP)
target     prot opt source               destination
DOCKER-USER  all  --  anywhere             anywhere
DOCKER-ISOLATION-STAGE-1  all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere             ctstate RELATED,ESTABLISHED
DOCKER     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere             ctstate RELATED,ESTABLISHED
DOCKER     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain DOCKER (2 references)
target     prot opt source               destination
ACCEPT     tcp  --  anywhere             172.17.0.2           tcp dpt:7999
ACCEPT     tcp  --  anywhere             172.17.0.2           tcp dpt:7990

Chain DOCKER-ISOLATION-STAGE-1 (1 references)
target     prot opt source               destination
DOCKER-ISOLATION-STAGE-2  all  --  anywhere             anywhere
DOCKER-ISOLATION-STAGE-2  all  --  anywhere             anywhere
RETURN     all  --  anywhere             anywhere

Chain DOCKER-ISOLATION-STAGE-2 (2 references)
target     prot opt source               destination
DROP       all  --  anywhere             anywhere
DROP       all  --  anywhere             anywhere
RETURN     all  --  anywhere             anywhere

Chain DOCKER-USER (1 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere

telnet 192.168.56.139 5432
Trying 192.168.56.139...
telnet: Unable to connect to remote host: Connection refused

Alguma ideia do que pode ser?

Obrigado, Jorge

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