I have the following Dockerfile and was wondering what I would need to do in order to get access to it from my host machine by visiting myapp.dev:
FROM ubuntu:16.04
USER root
RUN apt-get update && apt-get -y upgrade && apt-get install apt-utils -y && DEBIAN_FRONTEND=noninteractive apt-get -y install \
apache2 php7.0 php7.0-mysql libapache2-mod-php7.0 curl lynx-cur git
EXPOSE 80
ADD www /var/www/site
RUN echo "ServerName localhost" >> /etc/apache2/apache2.conf
CMD /usr/sbin/apache2ctl -D FOREGROUND
EXPOSE 80
I am using the following command to run the container:
docker run -d -p 8080:80
If you only want to be able to resolve it locally you could add an alias for localhost in your hosts file.
Locate your hosts file.
Linux: /etc/hosts
MacOS: /private/etc/hosts
Windows: C:\Windows\System32\drivers\etc\hosts
Add this line at the end of the file:
127.0.0.1 myapp.dev
Now you can access your container using myapp.dev:8080.
Related
I have a docker-compose.yml with two services, Grafana and Ubuntu. I'm trying to run Prometheus and node_exporter commands in Ubuntu container through entrypoint but only works for the first command.
Dockerfile:
FROM ubuntu:20.04
ENV PROMETHEUS_VERISION=2.38.0
ENV NODE_EXPORTER_VERISION=1.4.0
RUN apt update -y && apt upgrade -y
RUN apt install -y wget
WORKDIR /
# Install Prometheus
RUN wget https://github.com/prometheus/prometheus/releases/downloa/v$PROMETHEUS_VERISION/prometheus-$PROMETHEUS_VERISION.linux-amd64.tar.gz && \
tar xvfz prometheus-$PROMETHEUS_VERISION.linux-amd64.tar.gz
ADD cstm_prometheus.yml /prometheus-$PROMETHEUS_VERISION.linux-amd64/cstm_prometheus.yml
EXPOSE 9090
# Install Node Exporter
RUN wget https://github.com/prometheus/node_exporter/releases/download/v$NODE_EXPORTER_VERISION/node_exporter-$NODE_EXPORTER_VERISION.linux-amd64.tar.gz && \
tar xvfz node_exporter-$NODE_EXPORTER_VERISION.linux-amd64.tar.gz
EXPOSE 9100
COPY ./cstm_entrypoint.sh /
RUN ["chmod", "+x", "/cstm_entrypoint.sh"]
ENTRYPOINT ["/cstm_entrypoint.sh"]
cstm_entrypoint.sh:
#!/bin/bash
./prometheus-$PROMETHEUS_VERISION.linux-amd64/prometheus --config.file=/prometheus-$PROMETHEUS_VERISION.linux-amd64/cstm_prometheus.yml
./node_exporter-$NODE_EXPORTER_VERISION.linux-amd64/node_exporter
When check the services on web browser i have access to:
grafana: 0.0.0.0:3000
prometheus: 0.0.0.0:9090
but not for node_exporter on 0.0.0.0:9100
Anybody could help me please?
Thanks in advance.
Your script waits for Prometheus to finish before it starts node_exporter. Try adding a & at the end of the Prometheus command to have it detach from the shell. Then the script will continue and run the node_exporter command. Like this
#!/bin/bash
./prometheus-$PROMETHEUS_VERISION.linux-amd64/prometheus --config.file=/prometheus-$PROMETHEUS_VERISION.linux-amd64/cstm_prometheus.yml &
./node_exporter-$NODE_EXPORTER_VERISION.linux-amd64/node_exporter
I want to learn Docker so I decided to create all files (Dockerfile, docker-compose) step by step by my own.
I need Centos 8 with httpd and webmin. I prepared Dockerfile with httpd and it works very well but when I am trying add RUN with install webmin cmd I can’t figure how open webmin panel. Port 10000 doesn’t work or it works but I don’t know how to get there.
Also, If I need Centos 8 with phpmyadmin, webmin, apache etc. should I create docker-compose with Centos 8 and phpmyadmin separately? Or another way?
My Dockerfile
FROM centos:8
RUN yum update -y && yum install -y \
httpd \
httpd-tools \
wget \
perl \
perl-Net-SSLeay \
openssl perl-Encode-Detect
RUN wget https://prdownloads.sourceforge.net/webadmin/webmin-1.930-1.noarch.rpm \
&& rpm -U webmin-1.930-1.noarch.rpm
EXPOSE 80
CMD ["/usr/sbin/httpd","-D","FOREGROUND"]
I wanted to install apache, php7, postgres12, node, java in ubuntu:18.04 base image dockerfile and wanted to show postgre data in php file. After building and running the container when I checked the process status, the port is missing. I started docker recently so I am new in this. Here is my Dockerfile
FROM ubuntu:18.04
ARG DEBIAN_FRONTEND=noninteractive
# # Install openjdk-8-jdk
RUN apt-get update && \
apt-get install -y openjdk-8-jdk
RUN apt-get -y install nodejs
RUN apt-get update && apt-get -qq -y install curl
RUN apt-get -y install apache2
RUN apt-get -y install php7.2
RUN apt-get -y install libapache2-mod-php7.2
RUN rm -f /var/www/html/index.html
COPY . /var/www/html
RUN apt-get update && apt-get install -y gnupg2 && apt-get install -y wget
Run wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main" > /etc/apt/sources.list.d/pgdg.list
RUN apt-get update && apt-get install -y postgresql-12 postgresql-client-12
USER postgres
RUN /etc/init.d/postgresql start &&\
psql --command "CREATE USER docker WITH SUPERUSER PASSWORD 'docker';" &&\
createdb -O docker docker
RUN echo "host all all 0.0.0.0/0 md5" >> /etc/postgresql/12/main/pg_hba.conf
RUN echo "listen_addresses='*'" >> /etc/postgresql/12/main/postgresql.conf
EXPOSE 80 5432
CMD ["/usr/sbin/apache2ctl", "-D", "FOREGROUND"]
error
PS G:\Docker\test-docker-ubuntu-php\website> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1fba1b8327fd test-custom-all "/usr/sbin/apache2ct…" 2 minutes ago Exited (1) 2 minutes ago test-custom
PS G:\Docker\test-docker-ubuntu-php\website> docker logs 1fba1b8327fd
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.17.0.2. Set the 'ServerName' directive globally to suppress this message
(13)Permission denied: AH00072: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
AH00015: Unable to open logs
Action '-D FOREGROUND' failed.
The Apache error log may have more information.
Can you help me with this?
Thanks
I am new to Docker, I have setup Docker Container on an Amazon Linux box.
I have a docker file which installs tomcat java and a war.
I can see all the installations present in the docker container when I navigate through the container in the exact folders I have mentioned in the Docker file.
When I run the Docker container it says tomcat server has started and I have also tailed the logs so I can see the service is running.
But when I open the host IP URL and 8080 port it says URL can't be reached.
These are the commands to build and run the file which works fine and I can see the status as running.
docker build -t friendly1 .
docker run -p 8080:8080 friendly1
What am I missing here? Request some help on this.
FROM centos:latest
RUN yum -y update && \
yum -y install wget && \
yum -y install tar && \
yum -y install zip unzip
ENV JAVA_HOME /opt/java/jdk1.7.0_67/
ENV CATALINA_HOME /opt/tomcat/apache-tomcat-7.0.70
ENV SAVIYNT_HOME /opt/tomcat/apache-tomcat-7.0.70/webapps
ENV PATH $PATH:$JAVA_HOME/jre/jdk1.7.0_67/bin:$CATALINA_HOME/bin:$CATALINA_HOME/scripts:$CATALINA_HOME/apache-tomcat-7.0.70/bin
ENV JAVA_VERSION 7u67
ENV JAVA_BUILD 7u67
RUN mkdir /opt/java/
RUN wget https://<S3location>/jdk-7u67-linux-x64.gz && \
tar -xvf jdk-7u67-linux-x64.gz && \
#rm jdk*.gz && \
mv jdk* /opt/java/
# Install Tomcat
ENV TOMCAT_MAJOR 7
ENV TOMCAT_VERSION 7.0.70
RUN mkdir /opt/tomcat/
RUN wget https://<s3location>/apache-tomcat-7.0.70.tar.gz && \
tar -xvf apache-tomcat-${TOMCAT_VERSION}.tar.gz && \
#rm apache-tomcat*.tar.gz && \
mv apache-tomcat* /opt/tomcat/
RUN chmod +x ${CATALINA_HOME}/bin/*sh
WORKDIR /opt/tomcat/apache-tomcat-7.0.70/
CMD "startup.sh" && tail -f /opt/tomcat/apache-tomcat-7.0.70/logs/*
EXPOSE 8080
I'm trying to create a Docker (LAMP) image with the following
Dockerfile:
FROM ubuntu:latest
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y \
apache2 \
mysql-server \
php7.0 \
php7.0-bcmath \
php7.0-mcrypt
COPY start-script.sh /root/
RUN chmod +x /root/start-script.sh && /root/start-script.sh
start-script.sh:
#!/bin/bash
service mysql start
a2enmod rewrite
service apache2 start
I build it with:
docker build -t resting/ubuntu .
Then run it with:
docker run -it -p 8000:80 -p 5000:3306 -v $(pwd)/html:/var/www/html resting/ubuntu bash
The problem is, the MYSQL and Apache2 service are not started.
If I run /root/start-script.sh manually in the container, port 80 maps fine to port 8000, but I couldn't connect to MYSQL with 127.0.0.1:5000.
How can I ensure that the services are running when I spin up a container with the image, and map MYSQL out to my host machine?
You need to change the execution of the script to a CMD instruction.
FROM ubuntu:latest
RUN apt-get update \
&& DEBIAN_FRONTEND=noninteractive apt-get install -y \
apache2 \
mysql-server \
php7.0 \
php7.0-bcmath \
php7.0-mcrypt
COPY start-script.sh /root/
RUN chmod +x /root/start-script.sh
CMD /root/start-script.sh
Althought this works, this is not the right way to manage containers. You should have one container for your Apache2 and another one for MySQL.
Take a look to this article that build a LAMP stack using Docker-Compose: https://www.kinamo.be/en/support/faq/setting-up-a-development-environment-with-docker-compose
you need multiple images - one for each service or app.
A Docker container is not a virtual machine in which you run an entire stack. It is a virtual application, running one primary process.
If you need php, apache and mysql, then you will need 3 docker containers. one for your php app, one for apache and one for mysql.