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Arseny Zinchenko profile picture

Arseny Zinchenko

DevOps, cloud and infrastructure engineer. Love Linux, OpenSource, and AWS.

Location Kiev, Ukraine Joined Joined on  Personal website https://rtfm.co.ua/en github website twitter website
AWS: Route53 Private Hosted Zones — hiding domains from the Internet

AWS: Route53 Private Hosted Zones — hiding domains from the Internet

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4 min read
AWS: WAF WebACL logging and Logz.io integration

AWS: WAF WebACL logging and Logz.io integration

Comments
7 min read
AWS: Web Application Firewall overview, configuration, and its monitoring

AWS: Web Application Firewall overview, configuration, and its monitoring

Reactions 8 Comments
16 min read
AWS: CloudTrail overview and integration with CloudWatch and Opsgenie

AWS: CloudTrail overview and integration with CloudWatch and Opsgenie

Reactions 3 Comments
7 min read
AWS: Simple Email Service Bounce rate and monitoring with and Prometheus

AWS: Simple Email Service Bounce rate and monitoring with and Prometheus

Reactions 4 Comments
5 min read
Kubernetes: Deployment Strategies types, and Argo Rollouts

Kubernetes: Deployment Strategies types, and Argo Rollouts

Reactions 8 Comments
11 min read
ArgoCD: declarative Projects, Applications, and ArgoCD deploy from Jenkins

ArgoCD: declarative Projects, Applications, and ArgoCD deploy from Jenkins

Reactions 2 Comments
11 min read
ArgoCD: Okta integration, and user groups

ArgoCD: Okta integration, and user groups

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5 min read
ArgoCD: users, access, and RBAC

ArgoCD: users, access, and RBAC

Reactions 5 Comments
9 min read
Github: Github Actions overview and ArgoCD deployment example

Github: Github Actions overview and ArgoCD deployment example

Reactions 4 Comments
10 min read
Istio: shared Ingress/AWS ALB, Helm chart with conditions, Istio, and ExternalDNS

Istio: shared Ingress/AWS ALB, Helm chart with conditions, Istio, and ExternalDNS

Reactions 8 Comments
17 min read
Istio: external AWS Application LoadBalancer and Istio Ingress Gateway

Istio: external AWS Application LoadBalancer and Istio Ingress Gateway

Reactions 2 Comments
8 min read
AWS: cost optimization — purchasing the RDS Reserved Instances

AWS: cost optimization — purchasing the RDS Reserved Instances

Reactions 2 Comments
7 min read
Istio: an overview and running Service Mesh in Kubernetes

Istio: an overview and running Service Mesh in Kubernetes

Reactions 12 Comments
16 min read
Kubernetes: what are Endpoints

Kubernetes: what are Endpoints

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5 min read
Jenkins: running workers in Kubernetes and Docker images build

Jenkins: running workers in Kubernetes and Docker images build

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8 min read
Kubernetes: NGINX/PHP-FPM graceful shutdown and 502 errors

Kubernetes: NGINX/PHP-FPM graceful shutdown and 502 errors

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9 min read
Yandex.Tank: load testing tool — an overview, configuration, and examples

Yandex.Tank: load testing tool — an overview, configuration, and examples

Reactions 3 Comments
7 min read
Linux: setlocale: LC_ALL: cannot change locale (en_US.utf8) and Cyrillic symbols

Linux: setlocale: LC_ALL: cannot change locale (en_US.utf8) and Cyrillic symbols

Reactions 1 Comments
3 min read
Logz.io: collection logs from Kubernetes — fluentd vs filebeat

Logz.io: collection logs from Kubernetes — fluentd vs filebeat

Reactions 5 Comments
3 min read
Prometheus: Alertmanager Web UI alerts Silence

Prometheus: Alertmanager Web UI alerts Silence

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4 min read
ArgoCD: a Helm chart deployment, and working with Helm Secrets via AWS KMS

ArgoCD: a Helm chart deployment, and working with Helm Secrets via AWS KMS

Reactions 3 Comments
13 min read
ArgoCD: an overview, SSL configuration, and an application deploy

ArgoCD: an overview, SSL configuration, and an application deploy

Reactions 4 Comments
10 min read
Kubernetes: ServiceAccounts, JWT-tokens, authentication, and RBAC authorization

Kubernetes: ServiceAccounts, JWT-tokens, authentication, and RBAC authorization

Reactions 3 Comments
8 min read
Kubernetes: update AWS Route53 DNS from an Ingress

Kubernetes: update AWS Route53 DNS from an Ingress

Reactions 2 Comments
8 min read
Linux: LEMP set up — NGINX, PHP, MySQL, SSL, monitoring, logs, and a WordPress blog migration

Linux: LEMP set up — NGINX, PHP, MySQL, SSL, monitoring, logs, and a WordPress blog migration

Reactions 7 Comments
29 min read
Jenkins: Redis deployment, and Helm subchart values

Jenkins: Redis deployment, and Helm subchart values

Reactions 6 Comments
7 min read
Kubernetes: Service, load balancing, kube-proxy, and iptables

Kubernetes: Service, load balancing, kube-proxy, and iptables

Reactions 8 Comments
10 min read
Kubernetes: running SQL migrations with Kubernetes Job and Helm hook

Kubernetes: running SQL migrations with Kubernetes Job and Helm hook

Reactions 12 Comments
11 min read
Helm: reusable chart — named templates, and a generic chart for multiple applications

Helm: reusable chart — named templates, and a generic chart for multiple applications

Reactions 6 Comments
17 min read
Kubernetes: Evicted pods and pods Quality of Service

Kubernetes: Evicted pods and pods Quality of Service

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5 min read
Redis: running Master-Slave replication in Kubernetes

Redis: running Master-Slave replication in Kubernetes

Reactions 8 Comments 1
6 min read
Kubernetes: load-testing and high-load tuning — problems and solutions

Kubernetes: load-testing and high-load tuning — problems and solutions

Reactions 12 Comments 1
36 min read
Kubernetes: a cluster’s monitoring with the Prometheus Operator

Kubernetes: a cluster’s monitoring with the Prometheus Operator

Reactions 8 Comments 1
13 min read
Kubernetes: HorizontalPodAutoscaler — an overview with examples

Kubernetes: HorizontalPodAutoscaler — an overview with examples

Reactions 8 Comments
19 min read
Neo4j: running in Kubernetes

Neo4j: running in Kubernetes

Reactions 6 Comments
3 min read
Kubernetes: PersistentVolume and PersistentVolumeClaim — an overview with examples

Kubernetes: PersistentVolume and PersistentVolumeClaim — an overview with examples

Reactions 5 Comments
12 min read
Neo4j: graph database — run with Docker and Cypher QL examples

Neo4j: graph database — run with Docker and Cypher QL examples

Reactions 8 Comments
7 min read
Prometheus: yet-another-cloudwatch-exporter – collecting AWS CloudWatch metrics

Prometheus: yet-another-cloudwatch-exporter – collecting AWS CloudWatch metrics

Reactions 7 Comments
6 min read
Kubernetes: ClusterIP vs NodePort vs LoadBalancer, Services, and Ingress — an overview with…

Kubernetes: ClusterIP vs NodePort vs LoadBalancer, Services, and Ingress — an overview with…

Reactions 6 Comments
11 min read
Docker: configure tzdata and timezone during build

Docker: configure tzdata and timezone during build

Reactions 17 Comments 2
2 min read
AWS: CloudFormation  - using Conditions, Fn::Equals, and Fn::If -  an example

AWS: CloudFormation  - using Conditions, Fn::Equals, and Fn::If -  an example

Reactions 4 Comments
4 min read
Helm: helm-secrets — sensitive data encryption with AWS KMS and use it from Jenkins

Helm: helm-secrets — sensitive data encryption with AWS KMS and use it from Jenkins

Reactions 6 Comments
12 min read
Jira: filters and email notifications about tickets

Jira: filters and email notifications about tickets

Reactions 6 Comments
3 min read
AWS: CloudFormation – using lists in Parameters

AWS: CloudFormation – using lists in Parameters

Reactions 6 Comments
4 min read
Helm: Kubernetes package manager — an overview, getting started

Helm: Kubernetes package manager — an overview, getting started

Reactions 11 Comments
9 min read
AWS Elastic Kubernetes Service: a cluster creation automation, part 2 — Ansible, eksctl

AWS Elastic Kubernetes Service: a cluster creation automation, part 2 — Ansible, eksctl

Reactions 7 Comments
23 min read
Linux: no sound after suspend/sleep – the solution

Linux: no sound after suspend/sleep – the solution

Reactions 5 Comments
3 min read
Kubernetes: monitoring with Prometheus – exporters, a Service Discovery, and its roles

Kubernetes: monitoring with Prometheus – exporters, a Service Discovery, and its roles

Reactions 8 Comments
21 min read
AWS Elastic Kubernetes Service: a cluster creation automation, part 1 – CloudFormation

AWS Elastic Kubernetes Service: a cluster creation automation, part 1 – CloudFormation

Reactions 6 Comments
22 min read
Google Drive: using via terminal on Linux Debian 9 with insync-headless

Google Drive: using via terminal on Linux Debian 9 with insync-headless

Reactions 6 Comments
3 min read
AWS Elastic Kubernetes Service: running ALB Ingress controller

AWS Elastic Kubernetes Service: running ALB Ingress controller

Reactions 8 Comments
9 min read
Kubernetes: part 5 — RBAC authorization with a Role and RoleBinding example

Kubernetes: part 5 — RBAC authorization with a Role and RoleBinding example

Reactions 10 Comments 1
8 min read
Linux: processes core dumps, systemd-coredump and Debian

Linux: processes core dumps, systemd-coredump and Debian

Reactions 7 Comments
8 min read
AWS: CloudFormation – Nested Stacks and stacks parameters Import/Export

AWS: CloudFormation – Nested Stacks and stacks parameters Import/Export

Reactions 8 Comments
12 min read
Linux: gnome-keyring setup as Freedesktop SecretService

Linux: gnome-keyring setup as Freedesktop SecretService

Reactions 9 Comments
5 min read
Redis: “psync scheduled to be closed ASAP for overcoming of output buffer limits” and the client-output-buffer-limit

Redis: “psync scheduled to be closed ASAP for overcoming of output buffer limits” and the client-output-buffer-limit

Reactions 8 Comments 1
12 min read
Linux: PHP-FPM, Docker, STDOUT and STDERR – no an application’s error logs

Linux: PHP-FPM, Docker, STDOUT and STDERR – no an application’s error logs

Reactions 7 Comments
9 min read
PHP: PHP-FPM ignores environment variables – solutions

PHP: PHP-FPM ignores environment variables – solutions

Reactions 7 Comments
3 min read
Kubernetes: running metrics-server in AWS EKS for a Kubernetes Pod AutoScaler

Kubernetes: running metrics-server in AWS EKS for a Kubernetes Pod AutoScaler

Reactions 9 Comments
8 min read
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