Differences

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--- docker [2017/10/06 12:03] – ssm2017
+++ docker [2022/02/07 13:29] (current) – external edit 127.0.0.1
@@ Line 235: / Line 235: @@
 Get containers containing the letter "t" in name.
 <sxh bash>docker ps -a --format '{{.Names}}' --filter "name=t"</sxh>
+===== Get exposed ports =====
+<sxh bash>docker inspect --format='{{range $p, $conf := .HostConfig.PortBindings}} {{$p}} -> {{(index $conf 0).HostPort}} {{end}}' containername</sxh>
 ===== Docker one mysql instance =====
@@ Line 263: / Line 265: @@
 The mysql server will be accessible from the outside on the port 6603.
+== User Namespaces ==
+[[https://resourcepool.io/fr/2016/09/09/francais-le-user-namespace-dans-docker/|Source]]
+[[https://www.jujens.eu/posts/en/2017/Jul/02/docker-userns-remap/|Source2]]
+BEWARE IT CAN BREAK AN OLD DOCKER INSTALLATION !!!
+<sxh bash>
+groupadd -g 500000 dockremap &&
+      groupadd -g 501000 dockremap-user &&
+      useradd -u 500000 -g dockremap -s /bin/false dockremap &&
+      useradd -u 501000 -g dockremap-user -s /bin/false dockremap-user
+</sxh>
+<sxh bash>
+echo "dockremap:500000:65536" >> /etc/subuid &&
+    echo "dockremap:500000:65536" >>/etc/subgid
+</sxh>
+<sxh>
+{
+    "userns-remap": "default"
+}
+</sxh>
+<sxh bash>
+systemctl daemon-reload && systemctl restart docker
+</sxh>
+== Portainer ==
+in normal mode :
+<sxh bash>
+docker run -d --privileged -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock -v /opt/portainer:/data portainer/portainer
+</sxh>
+in usernamespace mode :
+<sxh bash>
+docker run -d --privileged --userns=host -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock -v /opt/portainer:/data portainer/portainer
+</sxh>
+===== php-fpm nginx with php extensions =====
+./docker-compose.yml
+<sxh yml>
+nginx:
+  image: nginx:latest
+  ports:
+      - "80:80"
+  volumes:
+      - ./htdocs:/srv/www
+      - ./conf.d:/etc/nginx/conf.d
+  links:
+      - php
+php:
+  build: ./docker/php
+  volumes:
+      - ./htdocs:/srv/www
+</sxh>
+./docker/php/Dockerfile
+<sxh>
+FROM php:7-fpm
+RUN apt-get update && apt-get install -y --fix-missing  zip libzip-dev libpng-dev libonig-dev \
+&& docker-php-ext-install gd \
+&& docker-php-ext-install mbstring \
+&& docker-php-ext-enable gd \
+&& docker-php-ext-enable mbstring
+</sxh>
 {{tag>docker}}