Append $CONDA_DIR/bin to sudo secure_path

Retain behavior when su was used instead

base-notebook/start.sh

@@ -48,8 +48,9 @@ if [ $(id -u) == 0 ] ; then
 
     # Enable sudo if requested
     if [[ "$GRANT_SUDO" == "1" || "$GRANT_SUDO" == 'yes' ]]; then
-        echo "Granting $NB_USER sudo access"
+        echo "Granting $NB_USER sudo access and appending $CONDA_DIR/bin to sudo PATH"
         echo "$NB_USER ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/notebook
+        sed -ri "s#Defaults\s+secure_path=\"([^\"]+)\"#Defaults secure_path=\"\1:$CONDA_DIR/bin\"#" /etc/sudoers
     fi
 
     # Exec the command as NB_USER with the PATH and the rest of

base-notebook/test/test_container_options.py

@@ -71,6 +71,19 @@ def test_sudo(container):
     assert rv == 0
     assert 'uid=0(root)' in c.logs(stdout=True).decode('utf-8')
 
+
+def test_sudo_path(container):
+    """Container should include /opt/conda/bin in the sudo secure_path."""
+    c = container.run(
+        tty=True,
+        user='root',
+        environment=['GRANT_SUDO=yes'],
+        command=['start.sh', 'sudo', 'jupyter', '--version']
+    )
+    rv = c.wait(timeout=10)
+    assert rv == 0
+
+
 def test_group_add(container, tmpdir):
     """Container should run with the specified uid, gid, and secondary
     group.