smijar’s gists

smijar / install-mongodb-on-centos7.snippets

Last active September 22, 2020 05:35

Installing mongodb on centos 7

	# from:https://quicktechnotes.wordpress.com/2017/01/02/how-to-install-mongodb-elasticsearch-and-graylog-on-centos-7/

	# Install EPEL
	sudo rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
	sudo yum -y install pwgen

	sudo yum -y update

	# Add mongodb repo.
	sudo vi /etc/yum.repos.d/mongodb-org-3.2.repo

smijar / install-jdk-on-centos.snippets

Last active January 20, 2024 02:40

Installing JDK 7 or 8 on centos 7/8

	# from https://www.digitalocean.com/community/tutorials/how-to-install-java-on-centos-and-fedora

	# JDK 7
	#------
	# Change to your home directory and download the Oracle Java 7 JDK RPM with these commands:
	cd ~
	wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.rpm"
	# Then install the RPM with this yum command (if you downloaded a different release, substitute the filename here):
	sudo yum localinstall jdk-7u79-linux-x64.rpm

smijar / get-ip-of-docker-bridge.snippets

Last active May 25, 2017 18:40

get gateway ip of docker bridge

export INTERNAL_DOCKER_HOST="tcp://$(docker run --rm busybox ip route show | grep ^default | cut -f3 -d ' '):2375"

smijar / docker-connect-to-host.snippets

Last active May 25, 2017 18:40

This gist provides a way to connect to a docker host

	# provide an alias to the host local loopback
	sudo ifconfig lo0 alias 172.20.123.1

	# check alias
	ifconfig\|more

	# ping alias from within docker
	docker run -it --rm busybox ping 172.20.123.1

	# check that the host services are accessible from the aliased IP

smijar / openstack-cinder-volume-space

Created May 16, 2017 20:37

	How I can see the used space / free space on a compute node with local storage?
	vgdisplay cinder-volumes
	or
	pvdisplay

smijar / centos7-firewall.snippets

Last active May 25, 2017 18:40

	# To disable firewalld, run the following command as root:
	systemctl disable firewalld

	# To stop firewalld, run the following command as root:
	systemctl stop firewalld

	# start firewalld
	systemctl start firewalld

	# status

smijar / rsync-to-remote-sync.snippets

Last active May 25, 2017 18:40

rsync -avz --exclude ./docker-volumes . <user>@<ip-address>:/user/<remote-folder>/

smijar / docker-compose-recreate-images.snippets

Last active May 25, 2017 18:41

Forces docker compose to recreate images for its components

docker-compose up --force-recreate

smijar / install-pip-on-centos7.snippets

Last active July 24, 2022 13:24

install python-pip on Centos 7 minimal

	# install epel-release on centos
	yum -y install epel-release
	yum -y update

	# install python-pip from epel
	yum -y install python-pip

	# Verify using:
	pip -V

smijar / install-docker-on-centos7.snippets

Last active February 19, 2018 21:20

Installing docker-ce on Centos7 minimal

	yum update

	https://docs.docker.com/engine/installation/linux/centos/

	yum install -y yum-utils
	yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
	yum makecache fast
	yum install docker-ce
	docker