AKAI TSUKI

System development or Technical something

ssh-keygen specifying output file with no passphrase.

create ssh key. $ ssh-keygen -t rsa -b 2048 -f ./id_rsa -N "" Generating public/private rsa key pair. Your identification has been saved in ./id_rsa. Your public key has been saved in ./id_rsa.pub. The key fingerprint is: *snip* The key's …

Try Kubernetes (v1.6.1).

Kubernetes Version [root@cent7no01 ~]# kubectl version Client Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.1+coreos.0", GitCommit:"9212f77ed8c169a0afa02e58dce87913c6387b3e", GitTreeState:"clean", BuildDate:"2017-04-04T00:32…

Setup LXD on Ubuntu 16.04

In the case of using Ubuntu Server 16.04, already the server was intalled LXD. check version test@ubuntu01:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=16.04 DISTRIB_CODENAME=xenial DISTRIB_DESCRIPTION="Ubuntu 16.04.2 LTS" tes…

Try to create OpenSSL x509 certificate (2)

Generate RSA private key (des3) $ openssl genrsa -des3 -out server.key 4096 Generating RSA private key, 4096 bit long modulus .....++ .........................................................................................................…

Try to create OpenSSL x509 certificate

Generate RSA private key $ openssl genrsa -out server.key 4096 Generating RSA private key, 4096 bit long modulus .......................................................++ ..........++ e is 65537 (0x10001) $ Generate a certificate signing r…

Let's check OpenShift-ansible

get openshift-ansible-3.4.70-1.tar.gz [root@centos01 ~]# wget https://github.com/openshift/openshift-ansible/archive/openshift-ansible-3.4.70-1.tar.gz

setup bridge device on CentOS 7, by use OVS

add bridge device by ovs-vsctl [root@kvmtest ~]# ovs-vsctl add-br br0 [root@kvmtest ~]# ovs-vsctl add-port br0 enp0s3 ifcfgenp0s3 interface configuration file [root@kvmtest ~]# cat /etc/sysconfig/network-scripts/ifcfg-enp0s3 DEVICE=enp0s3 …

Let's check config.yml for installation using ansible.

when we install OpenShift, we will use config.yml file . https://docs.openshift.org/latest/install_config/install/advanced_install.html#running-the-advanced-installation ~/openshift-ansible/playbooks/byo/config.yml open openshift-ansible/p…

Let's check Advanced Installation of OpenShift origin.

check below page. https://docs.openshift.org/latest/install_config/install/advanced_install.html#single-master create hosts file Host Name Infrastructure Component to Install centos01 Master and node centos01 etcd centos02 Node centos03 No…

install Open vSwitch on CentOS 7

Add rpm repository I get rpm from below page to add rdo repository. I perform this command [root@kvmtest ~]# yum localinstall https://repos.fedorapeople.org/repos/openstack/openstack-ocata/rdo-release-ocata-2.noarch.rpm Install OVS [root@k…

Upgrade Docker from 1.13.0 to 1.13.1 on CentOS 7

Command List $ docker version $ yum makecache fast $ sudo yum -y upgrade docker-engine $ docker version Detail upgrade docker [vagrant@localhost ~]$ docker version Client: Version: 1.13.0 API version: 1.25 Go version: go1.7.3 Git commit: 4…

Create a Vagrant Base Box from a VM.

Command list >vagrant status >vagrant halt >vagrant status >vagrant package --output centos7test.box >vagrant box list >vagrant box add centos7test centos7test.box >vagrant box list Detail from vagrant help e:\VM\centos01>vagrant package -…

install bash_kernel for jupyter notebook.

After installation of jupyter notebook, I install bash kernel to jupyter notebook. GitHub - takluyver/bash_kernel: A bash kernel for IPython Command list install bash_kernel # pip3.5 install bash_kernel # python3 -m bash_kernel.install sta…

commit container and re-run on docker.

After I commited container to image, I run container by saved image again and add option to publish the container’s port(8888). Command list stop container $ docker ps $ docker container stop work $ docker ps commit container to image $ do…

Install Jupyter Notebook by pip3.5 in CentOS 7 and python 3.5

Commadn list After Install python 3.5 in CentOS 7(docker container) - AKAI TSUKI install jupyter notebook # find / -name "pip*" # pip3.5 -V # pip3.5 install jupyter Detail [root@519dd98187dd /]# find / -name "pip*" /usr/bin/pip3.5 /usr/lib…

Install python 3.5 in CentOS 7(docker container)

Command List After Add IUS Community Project to Yum Repository in CentOS 7 - AKAI TSUKI install and confirm python3.5 # yum install -y python35u python35u-libs python35u-devel python35u-pip # find / -name python3.5 # python3.5 -V create sy…

Add IUS Community Project to Yum Repository in CentOS 7

Command List add IUS Community Project # yum install -y https://centos7.iuscommunity.org/ius-release.rpm yum search python35 (or something) # yum search python3 Detail [root@519dd98187dd /]# yum install -y https://centos7.iuscommunity.org/…

Install iproute in docker container (centos7).

I did not use ip/ss commands in default centos7 container. So, I install iproute package to container. Command list install iproute # yum install iproute Detail [root@519dd98187dd /]# yum install iproute Loaded plugins: fastestmirror, ovl …

install docker-compose 1.10.1 on CentOS 7

install I failed to get docker-compose as follows: [vagrant@localhost ~]$ sudo curl -L https://github.com/docker/compose/releases/download/1.10.1/dock er-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose -bash: /usr/local/bin/d…

install docker 1.13 on CentOS 7

I try to install docker 1.13 on CentOS 7. (Reference) https://docs.docker.com/engine/installation/linux/centos/ add repo to yum install hello world setting add repo to yum [vagrant@localhost ~]$ sudo yum install -y yum-utils Loaded plugins…

resize file system in Cent OS 7

ref:Create Physical volume in Linux CentOS - AKAI TSUKI add physical volume to volume group expand the logical volume resize file system size Add Physical Volume to Volume Group before # pvs PV VG Fmt Attr PSize PFree /dev/sda2 cl lvm2 a--…

Create Physical volume in Linux CentOS

Check disk mount and type with df # df -khT Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/cl-root xfs 35G 1.2G 34G 4% / devtmpfs devtmpfs 1.9G 0 1.9G 0% /dev tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs tmpfs 1.9G 8.3M 1.9G 1% /…

Create LVM type partition in Linux CentOS 7 by fdisk

create /dev/sda3 # fdisk /dev/sda Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sda: 85.9 GB, 85899345…

Use docker container for ssh test.

https://hub.docker.com/r/jdeathe/centos-ssh/ [root@localhost ~]# docker run -d \ > --name ssh.pool-1.1.1 \ > -p 2020:22 \ > jdeathe/centos-ssh:centos-7 Unable to find image 'jdeathe/centos-ssh:centos-7' locally centos-7: Pulling from jdeat…

What is dularion/streama?

etc

It's like Netflix, but self-hosted! http://dularion.github.io/streama/ github.com

confirm package(apt) version in Ubuntu

I confirmed version of zfs(zfsutils-linux) and lxd. ubu@ubuntu16:~$ apt-cache policy zfsutils-linux zfsutils-linux: Installed: 0.6.5.6-0ubuntu15 Candidate: 0.6.5.6-0ubuntu15 Version table: *** 0.6.5.6-0ubuntu15 500 500 http://jp.archive.ub…

Install lxd in Ubuntu

I executed the command "sudo apt install zfs lxd" in Ubuntu 16.04. But... lxd is already the newest version (2.0.8-0ubuntu1~ubuntu16.04.2). ubu@ubuntu16:~$ sudo apt install zfs lxd [sudo] password for ubu: Reading package lists... Done Bui…

apt update in ubuntu

I executed the command "sudo apt update". ubu@ubuntu16:~$ sudo apt update [sudo] password for ubu: Hit:1 http://jp.archive.ubuntu.com/ubuntu xenial InRelease Get:2 http://jp.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB] Get:3…

network configuration for ubuntu

I use ubuntu 16.04. I configured interfaces file for static ip as follows: ubu@ubuntu16:~$ cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, …

start postgres

try to start postgres by docker. [root@localhost ~]# docker pull postgres Using default tag: latest latest: Pulling from library/postgres 75a822cd7888: Pull complete 68f8c57d4ec8: Pull complete 1ee19503c02a: Pull complete ea8f451ca276: Pul…