tigerbyby_microservices

tigerbyby microservices repository

Homework #13

What done

• Installed docker
• Learn and test basic docker commands: ps, images, run, create, exec, commit, kill, system
• Installed docker-machine and yc
• Created Dockerfile, build an image and runned container
• Created dockerhub account
• Pushed image to dockerhub

Run commands

docker run --name reddit -d -p 9292:9292 tigerbybyby/otus-reddit:1.0

Homework #14

What done

• Downloaded app from link
• Created dockerfiles
• Built images from dockerfiles
• Created docker network and network aliases
• Runned docker containers from images

Run commands

docker run -d --network=reddit  --network-alias=post_db --network-alias=comment_db mongo:3.6
docker run -d --network=reddit  --network-alias=post tigerbybyby/post:1.0
docker run -d --network=reddit  --network-alias=comment tigerbybyby/comment:1.0
docker run -d --network=reddit  -p 9292:9292 tigerbybyby/ui:1.0

Homework #15

What done

• Tested docker network drivers: none, host, bridge
• Installed docker-compose
• Creted docker-compose.yml
• Used environments

Run commands

docker-compose up -d
docker ps -a

Homework #16

What done

• Installed kvm virtual machine
• Installed docker and docker-compose on vm
• Installed gitlab-ce from docker-compose.yml
• Created and configured gitlab-ci.yml
• Created stage and prod stages
• Succesfully runned pipeline jobs

Run commands

git checkout -b gitlab-ci-1
git remote add gitlab http://<your-vm-ip>/homework/example.git
git push gitlab gitlab-ci-1

Homework #17

What done

• Added prometheus Docker file and config
• Built prometheus image and pushed it to dockerhub
• Configured node_exporter
• Configured mongodb_exporter
• Added exporters into docker-compose.yml
• Configured blackbox_exporter
• Created Makefile

Run commands

for i in ui post-py comment; do cd src/$i; bash docker_build.sh; cd -; done
docker-compose up -d
make help

Homework #18

What done

• Installed golang latest version and yandex driver

wget https://go.dev/dl/go1.21.4.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf go1.21.4.linux-amd64.tar.gz
echo 'export PATH=$PATH:/usr/local/go/bin:~/go/bin' > ~/.bashrc ## Debian
go env -w GO111MODULE=off
go get -u github.com/yandex-cloud/docker-machine-driver-yandex
go version

• Created docker-machine. Modified command for current versions

docker-machine create \
 --driver yandex \
 --yandex-image-family "ubuntu-1804-lts" \
 --yandex-platform-id "standard-v1" \
 --yandex-folder-id $FOLDER_ID \
 --yandex-sa-key-file $SA_KEY_PATH \
 --yandex-memory "4" \
 --yandex-nat \ # Added
 logging

• Created flentd dockerfile and config
• Built fluentd docker image
• Runned docker-composes for app and logs
• Used kibana web interface
• Used grok in fluentd config
• Added zipkin to logging
• Tested bugged code

Run commands

cd docker; docker-compose -f docker-compose-logging.yml up -d; docker-compose up -d

Homework #19

What done

• Installed k8s using shkrga's terraform and ansible. (Added apt update into ansible playbook, used image ubuntu 20.04) After Ubuntu 21.04 you need to enable systemd cgroup https://stackoverflow.com/questions/55571566/unable-to-bring-up-kubernetes-api-server
• Created k8s manifests in kubernetes/reddit directory
• Runned all manifests

Run commands

cd kubernetes/terraform; terraform apply
cd ../ansible; ansible-playbook -i inventory.yml playbooks/k8s.yml
cd ../; scp -r reddit ubuntu@<IP>:~
ssh ubuntu@<IP> sudo kubectl apply -f ~/reddit/*.yml

Homework #20

What done

• Installed minikube
• Learned ~/.kube/config
• Created deployment and service manifests
• Used minikube dashboard
• Used namespaces (dev)
• Created yandex k8s cluster and hostgroup
• Applied manifests in yandex k8s

Run commands

minikube start
kubectl get nodes
kubectl apply -f ./kubernetes/reddit
minikube dashboard
kubectl apply -f ./kubernetes/reddit/dev-namespace.yml
kubectl apply -f ./kubernetes/reddit/ -n dev

Homework #21

What done

• Learned kube-dns
• Learned load-balancer
• Installed ingress controller
• Created tls cert and used ingress-secret
• Used network policy
• Created volume and claimed it to mongo pod

Run commands

kubectl apply -f ./kubernetes/reddit -n dev

Homework #22 (Final boss)

What done

• Installed helm latest version
• Created Charts directory with subdirectories
• Configured templates files for ui, comment and post
• Used _helpers.tpl
• Used helm requirements
• Not used deprecated tiller plugin
• installed gitlab by helm chart
  • set privileged to true in runner setting. (For build stage dind)
  • set ce version
  • kubectl get secret gitlab-gitlab-initial-root-password -ojsonpath='{.data.password}' | base64 --decode ; echo
• Created gitlab group and projects
• Configred .gitlab-ci.yml for projects

Run commands

Helm

helm install ${name} ${path}
helm ls
helm delete ${name}
helm dep update
helm upgrade ${name} ${path}