new: added ``openssl`` and ``htpasswd`` commands to compose docker image.

Dockerfile

@@ -96,6 +96,12 @@ RUN cp /usr/local/share/ca-certificates/ca.0k.io.pem /etc/ssl/ca.0k.io.pem && \
 ## requiring ``stdbuf`` for actions
 RUN apk add coreutils
 
+## requiring ``openssl`` command for certificate generation in charms
+RUN apk add openssl
+
+## requiring ``htpasswd`` command for BCrypt encryption
+RUN apk add apache2-utils
+
 ## install compose
 COPY ./bin/ /usr/local/bin/