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Linux the great: How does linux work?

Linux the great: How does linux work?: Basics of Linux: Linux is a  multitask  and  multiuser  operating system. Now, a little explanation of this terminology. An  operati...

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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",...

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...

How to grep the output of cURL?

curl writes the output to stderr, so redirect that and also suppress the progress: curl - v -- silent https :// google . com / 2 >& 1 | grep expire The reason why  curl  writes the information to stderr is so you can do: curl <url> | someprgram  without that information clobbering the input of  someprogram It is possible to use  --stderr -  as parameter, to redirect the output from stderr (default) to stdout. With this option you also should use  --silent  to suppress the progress bar. $ curl - v -- silent https :// google . com / -- stderr - | grep expire * expire date : 2015 - 09 - 01 00 : 00 : 00 GMT