Add SSH dependency and configuration to dev container

.gitignore

@@ -20,6 +20,7 @@
 
 /.project
 .DS_Store
+.clion.source.upload.marker
 .idea
 .vscode
 *.iml

container/Containerfile.ubuntu

@@ -15,18 +15,32 @@
 # specific language governing permissions and limitations
 # under the License.
 
+# SSH credentials:
+#   root@password
+
 FROM docker.io/library/ubuntu:22.04@sha256:b492494d8e0113c4ad3fe4528a4b5ff89faa5331f7d52c5c138196f69ce176a6
 
-# Install build & Celix dependencies
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
+# Install dependencies
+RUN DEBIAN_FRONTEND="noninteractive" apt-get update && \
+    DEBIAN_FRONTEND="noninteractive" apt-get install -y --no-install-recommends \
+        # Development dependencies \
+        dos2unix \
+        git \
+        locales-all \
+        rsync \
+        tar \
+        ssh \
+        tzdata \
         # Build dependencies \
         build-essential \
         ccache \
         cmake \
         curl \
         default-jdk \
-        git \
+        gcc \
+        g++ \
+        gdb \
+        make \
         python3 \
         # Celix dependencies \
         civetweb \
@@ -43,3 +57,15 @@ RUN apt-get update && \
         uuid-dev && \
     apt-get clean
 
+RUN ( \
+    echo 'Port 2233'; \
+    echo 'LogLevel INFO'; \
+    echo 'PermitRootLogin yes'; \
+    echo 'PasswordAuthentication yes'; \
+    echo 'Subsystem sftp /usr/lib/openssh/sftp-server'; \
+  ) > /etc/ssh/sshd_config_clion \
+  && mkdir /run/sshd
+
+RUN yes password | passwd root
+
+CMD ["/usr/sbin/sshd", "-D", "-e", "-f", "/etc/ssh/sshd_config_clion"]