amikha33

Questions are not from any actual exam!!!  



Q:  Create a job that calculates pi to 2000 decimal points using the container with the image named perl
and the following commands issued to the container:  ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
Once the job has completed, check the logs to and export the result to pi-result.txt.

Solution:

amikha33

   modules:
      https_2xx:
        prober: http
        timeout: 5s
        http:
          method: GET
          no_follow_redirects: false
          fail_if_ssl: false
          fail_if_not_ssl: true
          preferred_ip_protocol: "ipv4"

amikha33

Out of Memory (OOM) refers to a computing state where all available memory, including swap space, has been allocated.

Normally this will cause the system to panic and stop functioning as expected.
There is a switch that controls OOM behavior in /proc/sys/vm/panic_on_oom. 
When set to 1 the kernel will panic on OOM. 
A setting of 0 instructs the kernel to call a function named oom_killer on an OOM.
Usually, oom_killer can kill rogue processes and the system will survive. 
The easiest way to change this is to echo the new value to /proc/sys/vm/panic_on_oom.

# cat /proc/sys/vm/panic_on_oom 1

amikha33

- name: "get files from dir"
  find:
    paths: "/some/dir/foo"
  register: found_files

- name: print file names without path
  debug:
    msg: "{{ found_files['files'] | map(attribute='path') | map('regex_replace','^.*/(.*)$','\\1') | list }}"

amikha33

# Generate a new key
openssl genrsa -out server.key 2048

# Generate a new CSR
openssl req -sha256 -new -key server.key -out server.csr

# Check certificate against CA
openssl verify -verbose -CApath ./CA/ -CAfile ./CA/cacert.pem cert.pem

# Self Signed

amikha33

# deploy under "path" context path
curl --upload-file appplication-0.1-1.war "http://tomcat:tomcat@localhost:8080/manager/deploy?path=/application-0.1-1
# undeploy
curl "http://tomcat:tomcat@localhost:8080/manager/undeploy?path=/application-0.1-1"

# ! tomcat7 uses /manager/text/undeploy and /manager/text/deploy paths

# tomcat6-admin (debian) or tomcat6-admin-webapps (rhel) has to be installed 
# tomcat-users.xml has to be setup with user that has admin, manager and manager-script roles

amikha33

# deploy under "path" context path
curl --upload-file appplication-0.1-1.war "http://tomcat:tomcat@localhost:8080/manager/deploy?path=/application-0.1-1
# undeploy
curl "http://tomcat:tomcat@localhost:8080/manager/undeploy?path=/application-0.1-1"

# ! tomcat7 uses /manager/text/undeploy and /manager/text/deploy paths

# tomcat6-admin (debian) or tomcat6-admin-webapps (rhel) has to be installed 
# tomcat-users.xml has to be setup with user that has admin, manager and manager-script roles

amikha33

trigger:
- master


jobs:
- job: BuildAndTest
  workspace:
    clean: all
  pool:
    name: Self-Hosted-Agent

amikha33

---
- hosts: tomcatServer
  vars:
  - warName: ROOT.war
  - warRemotePath: /home/tomcat

  tasks:
  - name: Download WAR to server
    command: wget http://git-internal/release.war -O {{ warRemotePath }}/{{ warName }}
    

amikha33

Gist to support https://www.youtube.com/watch?v=KsTMy0920go

GitHub Repository

https://github.com/darinpope/java-web-app

use the sonar branch

SonarQube setup