{"id":393,"date":"2020-05-09T22:46:06","date_gmt":"2020-05-09T20:46:06","guid":{"rendered":"http:\/\/blog.xoupix.fr\/?p=393"},"modified":"2020-06-21T16:33:31","modified_gmt":"2020-06-21T14:33:31","slug":"useful-docker-commands","status":"publish","type":"post","link":"https:\/\/blog.xoupix.fr\/index.php\/2020\/05\/09\/useful-docker-commands\/","title":{"rendered":"Useful Docker commands"},"content":{"rendered":"\n<p>Quick how-to about Docker commands.<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Getting Docker container IP<\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_name_or_id<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Getting Docker container variable value<\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">docker exec &lt;container_id> bash -c 'echo \"$ENV_VAR\"'<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Saving Docker image on hard disk drive<\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">docker save myimage:version | gzip > myimage_version.tar.gz<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Loading Docker images from archive<\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">docker load -i myimage_version.tar.gz<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Pushing image from local Docker registry to another registry<\/h2>\n\n\n\n<p>Very useful when deploying IBM FileNet on OpenShift, by the way \ud83d\ude09 Maybe on another post \ud83d\ude42<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">docker tag myimage:version &lt;remote-registry-dns-or-ip>:&lt;remote-registry-port>\/&lt;namespace>\/myimage:version\ndocker push &lt;remote-registry-dns-or-ip>:&lt;remote-registry-port>\/&lt;namespace>\/myimage:version<\/pre>\n\n\n\n<p>And if you want to do it on OKD (&#8220;oc whoami -t&#8221; command will output the user password as a user token, &#8220;remote-registry-dns-or-ip&#8221; \/ &#8220;remote-registry-port&#8221; are usually &#8220;172.30.1.1&#8221; \/ &#8220;5000&#8221;<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">oc login -u &lt;oc-username> -p &lt;oc-password>\noc project &lt;namespace>\ndocker login -u &lt;oc-username> -p $(oc whoami -t) &lt;remote-registry-dns-or-ip>:&lt;remote-registry-port>\ndocker tag myimage:version &lt;remote-registry-dns-or-ip>:&lt;remote-registry-port>\/&lt;namespace>\/myimage:version\ndocker push &lt;remote-registry-dns-or-ip>:&lt;remote-registry-port>\/&lt;namespace>\/myimage:version\ndocker logout<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Quick how-to about Docker commands.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,23],"tags":[],"class_list":["post-393","post","type-post","status-publish","format-standard","hentry","category-docker","category-openshift"],"_links":{"self":[{"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/posts\/393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/comments?post=393"}],"version-history":[{"count":4,"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/posts\/393\/revisions"}],"predecessor-version":[{"id":401,"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/posts\/393\/revisions\/401"}],"wp:attachment":[{"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/media?parent=393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/categories?post=393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.xoupix.fr\/index.php\/wp-json\/wp\/v2\/tags?post=393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}