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ansible - variable within variable

Ansible 1.9.2 version. Does Ansible supports variable expansion within a variable while evaluating it. I have a task to download ...

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What's the difference between defaults and vars in an Ansible role?

When creating a new Ansible role, the template creates both a vars and a defaults directory with an empty main.yml ...

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ansible-playbook consistenly fails as gathering facts phase

Only asking here as a last resort. :-) I've been tasked with implementing some new ansible playbooks as I'm the ...

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**failed": true} msg: Failed to lock apt for exclusive operationFATAL: all hosts have already failed -- aborting**

I get the error {"**failed": true} msg: Failed to lock apt for exclusive operation FATAL: all hosts have already failed ...

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Ansible sudo does not work

I am writing Ansible scripts to install a few packages on CentOS machine. I am unable to execute a simple ...

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Docker swarm overlay Connect: no route to host

I have a swarm with 2 nodes. One is an ubuntu VM on azure and the other one is my ...

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Is it possible to customize swarm port? If so, how to do this?

according to docker doc: The following ports must be available. On some systems, these ports are open by default. TCP ...

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Docker swarm worker node cannot serve the nginx service it is hosting

As a learning exercise, I'm trying to set up a docker swarm on two test AWS EC2 instances, but I'm ...

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Is it necessary to open ports 2377, 7946, 4789 to create a docker swarm?

According to The following ports must be available. On some systems, these ports are open by default. TCP port 2377 ...

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Docker Swarm Service Can Not Be Reached on Different Node After Period

Problem I have a service running in Docker Swarm in an overlay network, which I start like this: docker service ...

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connect Docker Superset to a Windows Local Database

on my Windows 10, I have Apache-Superset container running on Docker Desktop. and also I have installed PostgreSQL ver.12 and ...

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How do I connect the Postgres database running on the local machine to the docker container

I have a Flask application running on the container and Postgres database on the local machine and Now, I want ...

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