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  • Add a specific floating IP to a project

    calendar Apr 4, 2022 · 1 min read · openstack networking  ·
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    I use this script to assign a specific Public IP address to a designated tenancy, in my environment we have multiple public subnets on the single Public network and one of those subnet's is owned by a reseller we work with, so only they have access to this set of IP's 1export PROJECT_ID=$1 2export IP_ADDRESS=$2 3source …


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  • Notes on using Hugo

    calendar Mar 31, 2022 · 1 min read · hugo docker  ·
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    hugo server -e staging --navigateToChanged docker run -it -v $(pwd):/data --net host --entrypoint /bin/sh peaceiris/hugo Build docs hugo Build docs inc drafts hugo -D


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  • Functional Ceph RadosGW docker container and config

    calendar May 14, 2021 · 3 min read · CEPH RADOSGW DOCKER CONFIG  ·
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    This article provides a basic guide to deploying RadosGW in a Docker container with Keystone authentication support. RadosGW is a part of the Ceph distributed storage system and offers interfaces compatible with S3 and Swift APIs, making it versatile for various cloud storage applications. Here, we will go through …


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  • Ceph - Edit running crushmap

    calendar May 12, 2021 · 1 min read · ceph  ·
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    Edit crushmap in a running cluster then re-inject it - Be careful! 1ceph osd getcrushmap -o crushmap 2crushtool -d crushmap -o crushmap.txt 3vim crushmap.txt <--Make your changes here 4crushtool -c crushmap.txt -o crushmap1 5ceph osd setcrushmap -i crushmap1


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  • Linux VLAN interfaces

    calendar May 12, 2021 · 1 min read · bash networking vlan  ·
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    Lets create a VLAN sub interface on a physical interface eth0 then add this new vlan subinterface eth0.10 to a new bridge br10 We might want to do this so that VM's running on this host have access to this VLAN 1ip link add link eth0 name eth0.10 type vlan id 10 2ip link set dev eth0.10 up 3brctl addbr br10 4brctl …


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  • Building an Ubuntu Vagrant box

    calendar Apr 23, 2021 · 2 min read · vagrant networking qemu  ·
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    Within the VM run this to 'pre-configure' it, ready for booting in Vagrant 1wget --no-check-certificate \\ 2 https://raw.githubusercontent.com/hashicorp/vagrant/main/keys/vagrant.pub \\ 3 -O /home/vagrant/.ssh/authorized_keys 4 5sudo rm -f /etc/machine-id 6sudo dbus-uuidgen --ensure=/etc/machine-id 7sudo rm …


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  • Compress + Base64 encode a (log) file to allow copy via SSH

    calendar Apr 20, 2021 · 1 min read · ssh bash  ·
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    Sometimes I need to move files from a server on which I have SSH access but these files are big and or have complex formatting which breaks if you just try and copy\paste the contents So, if we gzip the file then base64 encode this compressed file we now have a string thats much smaller than the original and it's in a …


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  • Named \ Bind9 example config

    calendar Apr 20, 2021 · 1 min read · named bind dns  ·
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    I came across this nice example of a bind9 config file that handles multiple subnet\vlans\zones and treats them differently 1server:/var/named/etc/bind# cat named.conf 2acl "lan" { 3 "localhost"; 4 192.168.16.0/24; 5}; 6 7acl "guest" { 8 192.168.0.0/16; 9 10.0.0.0/8; 10}; 11 12options { 13 …


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  • Named Bind9 example config

    calendar Apr 20, 2021 · 2 min read · keycloak haproxy  ·
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    I would have though this to be a common deployment but I had quite a significant challenge in getting this setup to run Here is my working config for Keycloak behind a reverse proxy Traffic flow Client keycloak.hawkless.id.au--->HTTPS--->HAProxy--->HTTPS--->Keycloak Container haproxy.cfg global maxconn 4000 …


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  • Manually add a ceph-mon

    calendar Dec 31, 2020 · 1 min read · ceph  ·
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    Sometimes it's necessary to rebuild the content of a Ceph monitor's local database, E.G it becomes corrupt or you somehow loose it! This process assumes the cluster is running and the remaining mons have achieved quorum, in which case it's safe to blow away the local DB of a single mon and let it re-create from the …


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Cory Hawkvelt photo

Cory Hawkvelt

CTO @ Nexgen Cloud | Career Nerd and Open Source Cloud Architect
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