added telnet to Dockerfile

myems-admin/Dockerfile

@@ -1,6 +1,6 @@
 FROM nginx:latest
 
-RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 # remove the default config
 RUN rm /etc/nginx/conf.d/default.conf && \

myems-aggregation/Dockerfile

@@ -1,6 +1,6 @@
 FROM python:slim
 
-RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 WORKDIR /code
 COPY . /code

myems-api/Dockerfile

@@ -1,6 +1,6 @@
 FROM python:slim
 
-# RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 # todo: share upload folder with admin container on Docker
 RUN mkdir -p /var/www/myems-admin/upload

myems-cleaning/Dockerfile

@@ -1,6 +1,6 @@
 FROM python:slim
 
-RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 WORKDIR /code
 COPY . /code

myems-modbus-tcp/Dockerfile

@@ -1,6 +1,6 @@
 FROM python:slim
 
-RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 WORKDIR /code
 COPY . /code

myems-normalization/Dockerfile

@@ -1,6 +1,6 @@
 FROM python:slim
 
-RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 WORKDIR /code
 COPY . /code

myems-web/Dockerfile

@@ -7,7 +7,7 @@ RUN npm run build
 
 FROM nginx:latest as production-stage
 
-RUN apt update && apt install -y nano
+RUN apt update && apt install -y nano telnet
 
 # remove the default config
 RUN rm /etc/nginx/conf.d/default.conf && rm /etc/nginx/nginx.conf