From c0574ed1e494371ef0afb56a8a37af81a7172099 Mon Sep 17 00:00:00 2001
From: Mike Lutz <milutz@gmail.com>
Date: Tue, 13 Jun 2017 14:13:26 -0400
Subject: [PATCH] first commit - contains working files

---
 Dockerfile                 | 10 +++++++++
 README.md                  |  3 +++
 jupyter_notebook_config.py | 42 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 README.md
 create mode 100644 jupyter_notebook_config.py

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..9101abb
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM jupyter/minimal-notebook
+
+ENV NB_USER jovyan
+
+USER root
+COPY jupyter_notebook_config.py /etc/jupyter/
+RUN chown -R $NB_USER:users /etc/jupyter/
+
+# Switch back to jovyan to avoid accidental container runs as root
+USER $NB_USER
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d87464d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+This is a hack to override the (june 12 2017) jupyter_notebook_config.py in jupyter/docker-stacks minimal-notebook
+
+Specifically it is adding code to check if an autogenerated cert is already there and if so not to replace it.
diff --git a/jupyter_notebook_config.py b/jupyter_notebook_config.py
new file mode 100644
index 0000000..e48646d
--- /dev/null
+++ b/jupyter_notebook_config.py
@@ -0,0 +1,42 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+from jupyter_core.paths import jupyter_data_dir
+import subprocess
+import os
+import os.path
+import errno
+import stat
+import sys
+
+c = get_config()
+c.NotebookApp.ip = '*'
+c.NotebookApp.port = 8888
+c.NotebookApp.open_browser = False
+
+# Generate a self-signed certificate
+if 'GEN_CERT' in os.environ:
+    dir_name = jupyter_data_dir()
+    pem_file = os.path.join(dir_name, 'notebook.pem')
+    try:
+        os.makedirs(dir_name)
+    except OSError as exc:  # Python >2.5
+        if exc.errno == errno.EEXIST and os.path.isdir(dir_name):
+            pass
+        else:
+            raise
+    # Generate a certificate if one doesn't exist on disk
+    if os.path.isfile(pem_file):
+        sys.stderr.write ("Reusing SSL pem file: " + str(pem_file)+"\n")
+    else:
+        sys.stderr.write ("Generating new self signed cert..\n.")
+        subprocess.check_call(['openssl', 'req', '-new',
+                               '-newkey', 'rsa:2048',
+                               '-days', '365',
+                               '-nodes', '-x509',
+                               '-subj', '/C=XX/ST=XX/L=XX/O=generated/CN=generated',
+                               '-keyout', pem_file,
+                               '-out', pem_file])
+    # Restrict access to the file
+    os.chmod(pem_file, stat.S_IRUSR | stat.S_IWUSR)
+    c.NotebookApp.certfile = pem_file