One of the bigges conference in europe, if you want to learn something new, DON’T MISS THE CHANCE
The Agenda is here
Register now here
See you there
Cheers
Osama
Tag: DevOps
APAC Groundbreakers Virtual Tour 2021
I will have two presentation about the DevOps
- Database Automation, Is this even possible ?
- Kuberenetes in Depth but in simple way
You can register here
The hashtag in use is #APACGBT2021
Enjoy
Cheers
Oracle Database 19c SIG November Meeting
About Quest’s product communities
Quest Oracle Community is home to 25,000+ users of JD Edwards, PeopleSoft, Oracle Cloud apps and Oracle Database products. We connect Oracle users to technology leaders and Oracle experts from companies who are driving innovation and leading through their use of Oracle products.
The Quest Oracle Community is dedicated to helping Oracle users develop skills and expand knowledge by connecting with other Oracle users and experts for education and networking.
I will present about the automation
You can register for the event from here
Thank you
Michigan Oracle Users Summit (MOUS) 2021
Another conference to share the knowledge it’s great to network with people who wants to learn something about the tech.
Michigan Oracle Users Summit Monday, October 25, 2021 through Thursday October 28, 2021 Register now here
Happy to share the List with these great speaker
Cheers
Osama
Build-up:DevOps Edition
I will be speak Build Up – DevOps Edition, it’s more disussion like about DevOps and why it’s important now , Don’t forget to register and learn something new.
The Link here
Regards
Osama
Scaling Pods in Kubernetes
Continue to pervious post of Configure Kubernetes on my blog.
This post will discuss how to scale the pods, I will assume the Kubernetes installed if not back to the above post.
If you did these steps below , you can skip
Initialize the cluster
kubeadm init --pod-network-cidr=10.244.0.0/16 --kubernetes-version=v1.11.3
As mentioned the command will generate commands like the picture.
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config- Install Flannel
Flannel is an open-source virtual network project managed by CoreOS network designed for Kubernetes. Each host in a flannel cluster runs an agent called flanneld . It assigns each host a subnet, which acts as the IP address pool for containers running on the host.
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.9.1/Documentation/kube-flannel.yml
- Create deployment
vi deployment.ymlapiVersion: apps/v1
kind: Deployment
metadata:
name: httpd-deployment
labels:
app: httpd
spec:
replicas: 3
selector:
matchLabels:
app: httpd
template:
metadata:
labels:
app: httpd
spec:
containers:
- name: httpd
image: httpd:latest
ports:
- containerPort: 80- Spin up the deployment
kubectl create -f deployment.yml
- Create the service
vim service.ymlkind: Service
apiVersion: v1
metadata:
name: service-deployment
spec:
selector:
app: httpd
ports:
- protocol: TCP
port: 80
targetPort: 80
type: NodePortkubectl create -f service.yml
- Scale the deployment up to 5 replicas.
vi deployment.ymlChange the number of replicas to 5:
spec: replicas: 5
- Apply the changes:
kubectl apply -f deployment.ymlEnjoy
Hope it’s useful
Osama
How to enable docker logging
Docker includes multiple logging mechanisms to help you get information from running containers and services. These mechanisms are called logging drivers. Each Docker daemon has a default logging driver, which each container uses unless you configure it to use a different logging driver, or “log-driver” for short.
STEPS :-
Configure Docker to user Syslog
- vim /etc/rsyslog.conf
In the file editor, uncomment the two lines under `Provides UDP syslog reception` by removing `#`.
#ModLoad imudp
#UDPServerRun 514Then
systemctl start rsyslog
- Now that syslog is running, let’s configure Docker to use syslog as the default logging driver. We’ll do this by creating a file called daemon.json
sudo mkdir /etc/docker
vi /etc/docker/daemon.json
{ "log-driver":
"syslog",
"log-opts": {
"syslog-address": "udp://<PRIVATE_IP>:514" }
}Then
systemctl start docker
Time to use for docker
For example , first method
docker container run -d --name syslog-logging httpd
Check by
docker logs syslog-logging
Or
tail /var/log/messages
second way to use the enable logging
docker container run -d --name json-logging --log-driver json-file httpd
Check
docker logs json-logging
Docker power 👌
Enjoy
Osama
Storing Container Data in Google Cloud Storage
I am posting about docker a lot recently because these blog post been in my Drafts for long time waiting someone to finish them 😅 and Finally I had chance to do that.
I posted recently about storing container data in AWS s3 , but this time the same topic but for Google Cloud and how to configure that.
Configuration
- Export some Linux variables to save time.
export projnum=$(curl http://metadata.google.internal/computeMetadata/v1/project/numeric-project-id -sH "Metadata-Flavor: Google")
export BUCKET="Osama-${projnum}"- Verify that the variable was set successfully
echo $projnum
echo $BUCKET- Prepare the cloud storage, using gsutil, create a new bucket
gsutil mb -l us-central1 -c standard gs://$BUCKET- Install gcsfuse
sudo yum install -y gcsfuse- Update the fuse.conf file to allow the user to mount the bucket properly
sudo sed -ri 's/# user_allow_other/user_allow_other/' /etc/fuse.conf- Configure the directories needed to mount the bucket
sudo mkdir /mnt/Osama /tmp/gcs- Change ownership of the directories to the Current user if you choose to skip this step then you will not have access
sudo chown Osama: /mnt/Osama/ /tmp/gcs- Mount the bucket
gcsfuse -o allow_other --temp-dir=/tmp/gcs $BUCKET /mnt/Osama/- Copy the website files into the bucket by copy Command
- List the contents of the bucket
gsutil ls gs://$BUCKETUse Bucket inside the container
- Mount the directory into the Docker container
docker run -d --name web1 --mount type=bind,source=/mnt/Osama,target=/usr/local/apache2/htdocs,readonly -p 80:80 httpd:2.4Enjoy
Simple and Fun 😉
Osama
Docker compose example
What is docker compose ?
Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration.
Benefits of Docker Compose
- Single host deployment – This means you can run everything on a single piece of hardware
- Quick and easy configuration – Due to YAML scripts
- High productivity – Docker Compose reduces the time it takes to perform tasks
- Security – All the containers are isolated from each other, reducing the threat landscape
Just quick post with example about docker-compose file to show you how much powerful this instead of running docker compose
- create file called docker-compose.yml
version: '3'
services:
ghost:
image: ghost:1-alpine
container_name: ghost-blog
restart: always
ports:
- 80:2368
environment:
database__client: mysql
database__connection__host: mysql
database__connection__user: root
database__connection__password: P4sSw0rd0!
database__connection__database: ghost
volumes:
- ghost-volume:/var/lib/ghost
depends_on:
- mysql
mysql:
image: mysql:5.7
container_name: ghost-db
restart: always
environment:
MYSQL_ROOT_PASSWORD: P4sSw0rd0!
volumes:
- mysql-volume:/var/lib/mysql
volumes:
ghost-volume:
mysql-volume:
2. Run
docker-compose up -dFinished
Osama
ansible provisioning for instance (Cloud Version) Using Pipelines
Imagine you are having multiple instances and you want to change something, if you will do this manually it will take time from you why not to automte the process ?
I upladed one of the projects to automate the process, this will allow to automate the simplest things for example new employee joined and you need to add his SSH key to your instances (You can even choose which VM you want to him/her to acces) , just add the key in the roles and configure the pipeline on your rep and the code will run Automtically.
I uploaded the project on my github HERE.
Ragards
Enjoy the power of automation.
Osama
Technology Geek 