Containers & Runtime Environments Mastery

How Software is Packaged, Isolated, and Executed

Master one of the most important shifts in modern computing — from Linux kernel isolation primitives through Docker and OCI standards to enterprise container platforms. This bootcamp covers containers, Docker, containerd, runc, networking, security, and everything you need to build production-grade containerised systems.

22Parts
22-Part Main Series

All Articles in This Series

From the foundations of process isolation through Docker mastery, container security, and enterprise operations — a complete journey from beginner to expert.

Part 1
The Evolution of Software Deployment
25 min read
HistoryVMsContainers
From physical servers through virtualisation to containers — understand why containers exist and how they changed infrastructure forever.
Read Article →
Part 2
Linux Namespaces — The Foundation of Isolation
30 min read
NamespacesPIDNetwork
Explore the six Linux namespace types that create the illusion of isolated environments — PID, Network, Mount, UTS, IPC, and User namespaces.
Read Article →
Part 3
Control Groups — Resource Management
25 min read
cgroupsCPUMemory
Master Linux control groups (cgroups v1 and v2) for CPU, memory, I/O, and process limits — the resource management backbone of every container.
Read Article →
Part 4
Union File Systems & Image Layering
22 min read
OverlayFSLayersCoW
Understand how OverlayFS, copy-on-write semantics, and image layering make containers lightweight and efficient.
Read Article →
Part 5
Docker Architecture & Core Concepts
28 min read
DockercontainerdImages
Explore the Docker Engine architecture — CLI, daemon, containerd, runc — plus core concepts like images, containers, registries, volumes, and networks.
Read Article →
Part 6
Docker CLI Mastery
30 min read
CLICommandsDebugging
Master every essential Docker command — from container lifecycle management to inspection, debugging, and resource monitoring workflows.
Read Article →
Part 7
Dockerfile Fundamentals
28 min read
DockerfileFROMBuild
Write professional Dockerfiles — master FROM, RUN, COPY, CMD, ENTRYPOINT, the build context, and the layer-by-layer execution model.
Read Article →
Part 8
Multi-Stage Builds & Image Optimization
26 min read
Multi-StageAlpineDistroless
Separate build and runtime environments with multi-stage builds. Optimise images with Alpine, distroless bases, layer caching, and dependency minimisation.
Read Article →
Part 9
BuildKit & Modern Build Techniques
24 min read
BuildKitCachingSecrets
Unlock next-generation Docker builds with BuildKit — parallel execution, advanced cache mounts, secret handling, and reproducible builds.
Read Article →
Part 10
Docker Networking Fundamentals
28 min read
BridgeHostOverlay
Master Docker network drivers — bridge, host, overlay, and macvlan — plus the docker0 bridge and container-to-container communication patterns.
Read Article →
Part 11
Advanced Networking & Service Discovery
26 min read
vethiptablesDNS
Dive into Linux networking internals behind containers — veth pairs, bridges, iptables, NAT, overlay networks, and DNS-based service discovery.
Read Article →
Part 12
Storage & Data Persistence
24 min read
VolumesBind MountsDrivers
Conquer ephemeral container storage with named volumes, bind mounts, tmpfs, storage drivers, and persistent data design strategies.
Read Article →
Part 13
OCI Standards & Specifications
22 min read
OCIRuntime SpecImage Spec
Understand the Open Container Initiative — Runtime Specification, Image Specification, and Distribution Specification that standardise the container ecosystem.
Read Article →
Part 14
containerd & runc Deep Dive
28 min read
containerdruncCRI
Explore container runtime internals — containerd's image management and snapshotters, runc's direct kernel interaction, and the Kubernetes Container Runtime Interface.
Read Article →
Part 15
Container Security Fundamentals
26 min read
ThreatsScanningTrivy
Map the container threat landscape — privilege escalation, kernel exploits, malicious images — and defend with vulnerability scanning, minimal bases, and image signing.
Read Article →
Part 16
Runtime Security & Hardening
26 min read
SeccompAppArmorRootless
Harden running containers with seccomp profiles, AppArmor, SELinux, capability dropping, read-only filesystems, and rootless container execution.
Read Article →
Part 17
Supply Chain Security & Secrets
24 min read
SBOMcosignSecrets
Secure the container supply chain with SBOMs, provenance attestations, cosign/Notary image signing, trusted registries, and safe secret handling.
Read Article →
Part 18
Docker Compose Mastery
30 min read
ComposeYAMLServices
Orchestrate multi-container applications with Docker Compose — services, networks, volumes, healthchecks, dependency ordering, and real-world project patterns.
Read Article →
Part 19
Container Orchestration Readiness
24 min read
SchedulingStatelessKubernetes
Bridge from Docker to Kubernetes — stateless vs stateful containers, scheduling concepts, resource allocation, and the mental model for orchestration.
Read Article →
Part 20
Container Monitoring & Observability
26 min read
MetricsLoggingcAdvisor
Build a container observability stack — CPU/memory/I/O metrics with cAdvisor, logging drivers (json-file, syslog, fluentd), and production monitoring patterns.
Read Article →
Part 21
Container Troubleshooting
26 min read
DebuggingOOMnsenter
Diagnose and fix production container issues — crash loops, OOM kills, networking failures, filesystem problems, and debugging with nsenter, strace, and tcpdump.
Read Article →
Part 22
Enterprise Container Platforms
26 min read
RegistryGovernanceMulti-Arch
Scale containers to the enterprise — registry replication, access control, air-gapped deployments, policy enforcement, compliance, and multi-architecture builds with Buildx.
Read Article →