Linux the great: Introduction to users and groups RHEL 7

Linux the great: Introduction to users and groups RHEL 7: While users can be either people (meaning accounts tied to physical users) or accounts that exist for specific applications to use, groups...

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Salt stack issues

The function “state.apply” is running as PID Restart salt-minion with command: service salt-minion restart No matching sls found for ‘init’ in env ‘base’ Add top.sls file in the directory where your main sls file is present. Create the file as follows: 1 2 3 base: 'web*' : - apache If the sls is present in a subdirectory elasticsearch/init.sls then write the top.sls as: 1 2 3 base: '*' : - elasticsearch.init How to execute saltstack-formulas create file /srv/pillar/top.sls with content: base : ' * ' : - salt create file /srv/pillar/salt.sls with content: salt : master : worker_threads : 2 fileserver_backend : - roots - git gitfs_remotes : - git://github.com/saltstack-formulas/epel-formula.git - git://github.com/saltstack-formulas/git-formula.git - git://github.com/saltstack-formulas/nano-formula.git - git://github.com/saltstack-f...

Saltstack and Vault integration

First install and configure vault using this tutorial: https://apassionatechie.wordpress.com/2017/03/05/hashicorp-vault/ Use the latest version of vault. Then install salt using the steps given here: https://docs.saltstack.com/en/latest/topics/installation/ If you face any issues then refer these links: https://apassionatechie.wordpress.com/2017/07/31/salt-issues/ https://apassionatechie.wordpress.com/2017/08/03/salt-stack-formulas/ Now let's integrate vault and salt so that we can access vault secrets from inside salt state. First let's add some key values into our vault. vault write secret/ssh/user1 password="abc123" Then you can check it by reading: vault read secret/ssh/user1 To allow salt to access your secrets you must firstly create a policy as follows: salt-policy.hcl [code] path "secret/*" { capabilities = ["read", "list"] } path "auth/*" { capabilities = ["read", "list","sudo",...

Terraform

Terraform is a tool for building, changing, and versioning infrastructure safely and efficiently. Terraform can manage existing and popular service providers as well as custom in-house solutions. Configuration files describe to Terraform the components needed to run a single application or your entire datacenter. Terraform generates an execution plan describing what it will do to reach the desired state, and then executes it to build the described infrastructure. As the configuration changes, Terraform is able to determine what changed and create incremental execution plans which can be applied. The infrastructure Terraform can manage includes low-level components such as compute instances, storage, and networking, as well as high-level components such as DNS entries, SaaS features, etc. The key features of Terraform are: Infrastructure as Code : Infrastructure is described using a high-level configuration syntax. This allows a blueprint of your datacenter to be versioned and...

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