initial commit

6 files changed, 276 insertions, 0 deletions

diff --git a/Makefile b/Makefile
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index 0000000..e780f3e
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,3 @@
+run:
+	pipenv install
+	pipenv run lookatme --theme=dark --style=vim --live README.md
diff --git a/Pipfile b/Pipfile
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index 0000000..37f2a53
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+++ b/Pipfile
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+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+lookatme = "*"
+
+[requires]
+python_version = "3.8"
diff --git a/Pipfile.lock b/Pipfile.lock
new file mode 100644
index 0000000..82d200c
--- /dev/null
+++ b/Pipfile.lock
@@ -0,0 +1,78 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "e708a544db04c52d208589e7f4eb0ec594971e0ce0f178e12f0ff8502a023ff3"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.8"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "click": {
+            "hashes": [
+                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
+                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
+            ],
+            "version": "==7.1.2"
+        },
+        "lookatme": {
+            "hashes": [
+                "sha256:dabf49245ecca382cb3b031166559ed0c96683bd5a6043be7a019b8d5493cfa9"
+            ],
+            "index": "pypi",
+            "version": "==1.2.0"
+        },
+        "marshmallow": {
+            "hashes": [
+                "sha256:35ee2fb188f0bd9fc1cf9ac35e45fd394bd1c153cee430745a465ea435514bd5",
+                "sha256:9aa20f9b71c992b4782dad07c51d92884fd0f7c5cb9d3c737bea17ec1bad765f"
+            ],
+            "version": "==3.6.1"
+        },
+        "mistune": {
+            "hashes": [
+                "sha256:59a3429db53c50b5c6bcc8a07f8848cb00d7dc8bdb431a4ab41920d201d4756e",
+                "sha256:88a1051873018da288eee8538d476dffe1262495144b33ecb586c4ab266bb8d4"
+            ],
+            "version": "==0.8.4"
+        },
+        "pygments": {
+            "hashes": [
+                "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
+                "sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"
+            ],
+            "version": "==2.6.1"
+        },
+        "pyyaml": {
+            "hashes": [
+                "sha256:06a0d7ba600ce0b2d2fe2e78453a470b5a6e000a985dd4a4e54e436cc36b0e97",
+                "sha256:240097ff019d7c70a4922b6869d8a86407758333f02203e0fc6ff79c5dcede76",
+                "sha256:4f4b913ca1a7319b33cfb1369e91e50354d6f07a135f3b901aca02aa95940bd2",
+                "sha256:69f00dca373f240f842b2931fb2c7e14ddbacd1397d57157a9b005a6a9942648",
+                "sha256:73f099454b799e05e5ab51423c7bcf361c58d3206fa7b0d555426b1f4d9a3eaf",
+                "sha256:74809a57b329d6cc0fdccee6318f44b9b8649961fa73144a98735b0aaf029f1f",
+                "sha256:7739fc0fa8205b3ee8808aea45e968bc90082c10aef6ea95e855e10abf4a37b2",
+                "sha256:95f71d2af0ff4227885f7a6605c37fd53d3a106fcab511b8860ecca9fcf400ee",
+                "sha256:b8eac752c5e14d3eca0e6dd9199cd627518cb5ec06add0de9d32baeee6fe645d",
+                "sha256:cc8955cfbfc7a115fa81d85284ee61147059a753344bc51098f3ccd69b0d7e0c",
+                "sha256:d13155f591e6fcc1ec3b30685d50bf0711574e2c0dfffd7644babf8b5102ca1a"
+            ],
+            "version": "==5.3.1"
+        },
+        "urwid": {
+            "hashes": [
+                "sha256:0896f36060beb6bf3801cb554303fef336a79661401797551ba106d23ab4cd86"
+            ],
+            "version": "==2.1.0"
+        }
+    },
+    "develop": {}
+}
diff --git a/README.md b/README.md
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+++ b/README.md
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+---
+title: Developing with Docker
+author: gitlab.com/xlgmokha/developing-with-docker
+date: 2020-06-10
+---
+
+# Developing with Docker
+
+Mo Khan, Backend Engineer
+
+Composition Analysis, GitLab
+
+https://gitlab.com/xlgmokha
+
+Inspired by: gitlab-org/gitlab#216082
+
+# Agenda
+
+* Build (build)
+* Start/Stop container (ps, start, stop)
+* Getting a shell (run vs exec)
+* Analyzing an image (dive, docker layers)
+* Shrinking an image (compression, discuss the trade offs of having more v. less layers)
+* Sharing an image (push, pull, authn)
+
+# Definitions
+
+* Image: is like a class
+* Container: is like an instance of a class (i.e. object)
+
+# Definitions - Image/Container
+
+* Person is a class definition
+* "you" and "mo" are instances of the class Person
+* instances of person can interact with one another
+
+```ruby
+class Person
+  def fist_bump(other_person)
+  end
+end
+
+mo = Person.new
+you = Person.new
+
+mo.first_bump(you)
+```
+
+# Definitions
+
+Registry: stores images and makes them available to others
+
+For example:
+
+* https://index.docker.io
+* https://registry.gitlab.com
+
+```bash
+curl -s -i https://index.docker.io/v2/alpine/tags/list
+```
+
+# Docker - Architecture
+
+```plantuml
+
+```
+
+https://docs.docker.com/get-started/overview/#docker-architecture
+
+# Dockerfile
+
+A minimal Dockerfile:
+
+```file
+path: examples/001/Dockerfile
+relative: true
+lang: docker
+```
+
+https://docs.docker.com/engine/reference/builder/
+
+# Dockerfile - FROM
+
+> Initializes a build stage and sets a Base Image.
+
+In this example the base image is alpine:latest.
+By default this image will be fetched from the default Docker registry.
+https://index.docker.io/
+
+```file
+path: examples/001/Dockerfile
+relative: true
+lang: docker
+lines:
+  start: 0
+  end: 1
+```
+
+# Dockerfile - COPY
+
+Copy "hello.rb" from the host to
+"/usr/local/bin/hello" within the Docker image.
+
+```file
+path: examples/001/Dockerfile
+relative: true
+lang: docker
+lines:
+  start: 1
+  end: 2
+```
+
+```terminal8
+tree ./examples/001
+```
+
+# Dockerfile - RUN
+
+RUN a command from within the image and make "hello" executable.
+
+```file
+path: examples/001/Dockerfile
+relative: true
+lang: docker
+lines:
+  start: 2
+  end: 3
+```
+
+# Dockerfile - CMD
+
+Set the default command to run when the docker image
+is launched as a container.
+
+```file
+path: examples/001/Dockerfile
+relative: true
+lang: docker
+lines:
+  start: 2
+  end: 3
+```
+
+# docker build
+
+```terminal32
+bash -il
+```
+
+# docker ps
+
+# docker start
+
+# docker stop
+
+# docker run
+
+# docker exec
+
+# dive
+
+* Describe layers
+* Downloading multiple layers in parallel vs 1 large layer
+
+# Compression (zstd)
+
+More layers == more parallel download
+Smaller layers == faster downloads
+
+# Distribution
+
+# docker push
+
+# docker pull
+
+# docker login
diff --git a/examples/001/Dockerfile b/examples/001/Dockerfile
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+++ b/examples/001/Dockerfile
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+FROM alpine:latest
+COPY hello.rb /usr/local/bin/hello
+RUN chmod +x /usr/local/bin/hello
+CMD ["hello"]
diff --git a/examples/001/hello.rb b/examples/001/hello.rb
new file mode 100644
index 0000000..0a6e058
--- /dev/null
+++ b/examples/001/hello.rb
@@ -0,0 +1,3 @@
+#!/usr/bin/env ruby
+
+puts "Hello World"