From 1530ccd2952ed5d7eaa169f6a326b022de0b3212 Mon Sep 17 00:00:00 2001
From: Gustavo Cordova <gustavo.cordova@gmail.com>
Date: Wed, 15 Feb 2023 13:28:57 -0800
Subject: [PATCH] Initial commit

---
 Dockerfile         | 49 ++++++++++++++++++++++++++++++++++++++++++++++
 Makefile           | 48 +++++++++++++++++++++++++++++++++++++++++++++
 README.md          | 40 +++++++++++++++++++++++++++++++++++++
 docker-compose.yml |  8 ++++++++
 4 files changed, 145 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 Makefile
 create mode 100644 README.md
 create mode 100644 docker-compose.yml

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..0cb2ace
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,49 @@
+# Systemd inside a Docker container, for CI only
+FROM ubuntu:22.10
+
+# Configure Ubuntu with SystemD
+RUN export DEBIAN_FRONTEND=noninteractive TZ=America/Los_Angeles \
+ && apt-get update -y \
+ && apt-get upgrade -y \
+ && apt-get install -y \
+        systemd \
+        curl \
+        git \
+        sudo \
+        python3-pip python3-venv \
+ && rm -rfv /var/lib/apt/lists/* \
+ && find /etc/systemd/system /lib/systemd/system \
+      -path '*.wants/*' \
+      -not -name '*journald*' \
+      -not -name '*systemd-tmpfiles*' \
+      -not -name '*systemd-user-sessions*' \
+      -exec rm -fv {} \;
+
+# Some required environment variables....
+ENV TLJH_BOOTSTRAP_DEV=yes \
+    TLJH_BOOTSTRAP_PIP_SPEC=/srv/src \
+    PATH=/opt/tljh/hub/bin:${PATH}
+
+# Tell SystemD to start up...
+RUN systemctl set-default multi-user.target
+
+# Download the repository into its expected location
+# and run the bootstrapper to initialize the service.
+ARG TLJH_ADMIN_USERNAME="admin"
+ARG TLJH_ADMIN_PASSWORD="admin"
+ARG TLJH_REPO="https://github.com/jupyterhub/the-littlest-jupyterhub"
+RUN git clone --depth=1 "$TLJH_REPO" /srv/src && rm -rf /srv/src/.git
+
+# Preinstall everything needed, this will fail when it tries to start up tljh
+RUN python3 /srv/src/bootstrap/bootstrap.py --admin "$TLJH_ADMIN_USERNAME:$TLJH_ADMIN_PASSWORD" || true
+
+# Finish running the installer as first thing when systemd is up
+RUN CRED="$TLJH_ADMIN_USERNAME:$TLJH_ADMIN_PASSWORD" \
+ && echo '#!/bin/bash' > /etc/rc.local \
+ && echo "/opt/tljh/hub/bin/python3 -m tljh.installer --admin '$CRED'" >> /etc/rc.local \
+ && chmod 755 /etc/rc.local
+
+# This is what's running on container startup
+CMD ["/lib/systemd/systemd", "--log-target=journal"]
+EXPOSE 80/tcp
+STOPSIGNAL SIGRTMIN+3
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..46dfb00
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,48 @@
+.PHONY: help clean build start stop bootstrap enter clone
+
+REPO	:= https://github.com/jupyterhub/the-littlest-jupyterhub
+PORT	:= -p 127.0.0.3:8080:80
+SOCK	:= -v /var/run/docker.sock:/var/run/docker.sock
+CLIENT	:= -v /usr/bin/docker:/usr/bin/docker
+SRCDIR	:= -v "$(CURDIR)/tljh:/srv/src"
+NAME	:= tljh-dev
+TAG	:= tljh:dev
+EXISTS	:= $(shell docker inspect $(TAG) >/dev/null 2>&1 && echo YES || echo NO)
+CONTID	:= $(shell docker ps -q -f 'NAME=$(NAME)' 2>/dev/null || true)
+
+help: ## Display this help message
+ifeq ($(EXISTS),YES)
+	@echo "Docker image:"
+	@docker images $(TAG)
+endif
+ifneq ($(CONTID),)
+	@echo "Container:"
+	@docker ps -s -f 'ID=$(CONTID)'
+endif
+	@echo ""
+	@echo "Usage:"
+	@sed -nE 's!^([^:]+):\s*##\s*(.+)\s*$$!\tmake \1\t- \2!p' Makefile
+
+clean: ## Remove the docker image and container
+	-docker rm -f $(NAME)
+	-docker rmi $(TAG)
+
+build: ## Build the 'hub' docker image
+	docker build --rm -t $(TAG)  .
+
+start: ## Start the JupyterHub container
+	docker run --privileged --rm -d --name=$(NAME) $(PORT) $(SOCK) $(CLIENT) $(SRCDIR) $(TAG)
+
+stop: ## Stop and remove the container
+	docker rm -f $(NAME)
+
+bootstrap: ## Run the bootstrap script in the container
+	docker exec -ti -w /srv/src/bootstrap $(NAME) python3 ./bootstrap.py --admin dad:DadStuff
+
+enter: ## Open a shell in the container
+	docker exec -ti $(NAME) /bin/bash
+
+clone: ## Clone the repository
+	git clone --depth=1 $(REPO) tljh
+
+# vim:ai noet ts=8 sw=8 wm=0:
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..34766bd
--- /dev/null
+++ b/README.md
@@ -0,0 +1,40 @@
+# The Littlest Jupyter Hub
+Run a TLJH installation in a docker container.
+
+## Build the image
+Run:
+
+```sh
+$ docker build -t tljh-dev .
+```
+
+Or, if you have `make` installed:
+
+```sh
+$ make img
+```
+
+It'll download all its required dependencies during the build, it doesn't require anything from the context directory besides the `Dockerfile`.
+
+
+## Start the container
+Run the container:
+
+```sh
+$ mkdir -p data
+$ docker run -d --rm --name=tljh-dev -p 12000:80 --privileged tljh-dev
+```
+
+Or, again, if you have `make` installed:
+
+```sh
+$ make start
+```
+
+
+### TO-DO
+These details still need to be worked out:
+ * Create a persistent mountpoint for all notebooks and custom configs
+ * Speed up startup, by creating the user-environment during build time instead of doing it during runtime
+ * Same as above for the systemd configuration (setting up services, 'daemon-reload', etc)
+
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..62abb41
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,8 @@
+---
+version: '3'
+services:
+  tljh-dev:
+    image: tljh-dev
+    ports:
+      - 127.0.0.1:1200:80
+    restart: unless-stopped