{"id":1375,"date":"2025-01-31T00:00:00","date_gmt":"2025-01-30T23:00:00","guid":{"rendered":"https:\/\/demo.sidekick.be\/itenium\/generated-files-and-synology-cloud-sync\/"},"modified":"2025-11-28T13:31:41","modified_gmt":"2025-11-28T12:31:41","slug":"generated-files-and-synology-cloud-sync","status":"publish","type":"post","link":"https:\/\/demo.sidekick.be\/itenium\/blog\/docker\/generated-files-and-synology-cloud-sync\/","title":{"rendered":"Share files generated by Docker with Synology CloudSync"},"content":{"rendered":"<h1 id=\"in-cloudsync-folder\">In CloudSync Folder<\/h1>\n<h2 id=\"synology-configuration\">Synology Configuration<\/h2>\n<h3 id=\"enable-nfs\">Enable NFS<\/h3>\n<p>Steps: Control Panel &gt; File Services &gt; NFS &gt; Enable<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/itenium-be.github.io\/blog-posts-new\/assets\/blog-images\/synology-docker-cloud-sync-1-enable-nfs.png\" alt=\"Enabling NFS v4 on Synology\" title=\"Enabling NFS v4 on Synology\" class=\"img-responsive\" \/><\/p>\n<h3 id=\"enable-nfs-on-shared-drive\">Enable NFS on Shared Drive<\/h3>\n<ul>\n<li>Control Panel &gt; Shared Folder &gt; right Click \u201cworkspace\u201d &gt; Edit &gt; NFS Permissions\n<ul>\n<li>Create &gt; Hostname or IP: 127.0.0.1 &gt; Save<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/itenium-be.github.io\/blog-posts-new\/assets\/blog-images\/synology-docker-cloud-sync-2-nfs-for-cloud-sync-share.png\" alt=\"Enabling NFS on Synology Shared Folder\" title=\"Enabling NFS on Synology Shared Folder\" class=\"img-responsive\" \/><\/p>\n<h2 id=\"the-code\">The Code<\/h2>\n<h3 id=\"composeyaml\">compose.yaml<\/h3>\n<p>Requires an <code>.env<\/code> file with: <code>SYNC_DIR=\/volume1\/CloudSyncedFolder\/shared-with-3rd-party<\/code><\/p>\n<pre><code class=\"language-yaml\">version: \"3\"\n\nservices:\n  cron_job:\n    # Sets up the CRON job\n    build: .\n    # Scheduled job write to \/export\n    volumes:\n      - exportVolume:\/export\n\nvolumes:\n  # The required magic\n  exportVolume:\n    driver: local\n    driver_opts:\n      type: nfs\n      o: nfsvers=4,addr=127.0.0.1,rw\n      # The folder the job writes to\n      # Shared with the 3rd party\n      device: \":${SYNC_DIR}\"\n<\/code><\/pre>\n<h3 id=\"other-files\">Other files<\/h3>\n<p><a href=\"https:\/\/github.com\/itenium-be\/synology-cloud-sync-vs-docker\">Minimal CRON job setup<\/a><\/p>\n<ul>\n<li>Dockerfile: Copies <code>sh<\/code> files to the container and runs start.sh<\/li>\n<li>start.sh: Calls <code>crontab<\/code> to run create-file.sh and starts the daemon<\/li>\n<li>create-file.sh: <code>touch \/export\/export.csv<\/code><\/li>\n<\/ul>\n<h2 id=\"nfwhat\">NFWhat?<\/h2>\n<p>NFS or <a href=\"https:\/\/en.wikipedia.org\/wiki\/Network_File_System\">Network File System<\/a>, a distributed file system protocol which allows you to access files over a network as if they were on the local disk. It has been around since 1984 and is pretty much the standard on Linux systems.<\/p>\n<p>Thanks to NFS we get proper <code>inotify<\/code> events and CloudSync picks up our files. Crisis averted!<\/p>\n<h1 id=\"outside-cloudsync-folder\">Outside CloudSync Folder<\/h1>\n<p>It might not be possible to create the files directly into the folder that CloudSync is active on.<\/p>\n<p>The easy solution would be to create a symbolic link to the CloudSync folder; but, of course, that doesn\u2019t work.<\/p>\n<pre><code class=\"language-sh\">ln -s \/volume1\/Projects\/GeneratedFiles \/volume1\/Dropbox\/GeneratedProjectFiles\n<\/code><\/pre>\n<h2 id=\"scheduled-rsync-task\">Scheduled rsync Task<\/h2>\n<p>An easy solution here is creating a recurring task to run <code>rsync<\/code>.<\/p>\n<ul>\n<li>Synology DSM<\/li>\n<li>Control Panel &gt; Services &gt; Task Scheduler<\/li>\n<li>Create &gt; Scheduled Task &gt; User-defined script\n<ul>\n<li>General: Set a task name<\/li>\n<li>Schedule: I kept the default of a daily sync<\/li>\n<li>Task Settings &gt; Run command<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<pre><code class=\"language-sh\">rsync -av --delete \/volume1\/Projects\/GeneratedFiles \/volume1\/Dropbox\n<\/code><\/pre>\n<p>This will create a folder <code>GeneratedFiles<\/code> in <code>\/volume1\/Dropbox<\/code>.<\/p>\n<p>rsync options:<\/p>\n<ul>\n<li><code>-a<\/code>: Archive mode to preserve file attributes (permissions, timestamps etc)<\/li>\n<li><code>-v<\/code>: Verbose output. You\u2019ll have to select a folder for the output in Task Scheduler &gt; Settings to actually see the output.<\/li>\n<li><code>--delete<\/code>: If your Docker container also deletes files<\/li>\n<li><code>--chown=CloudSync:CloudSync<\/code>: I didn\u2019t have to change ownership for CloudSync to pick up the files<\/li>\n<\/ul>\n<p>Of course you could also just add this to the <code>docker-compose<\/code> \ud83d\ude00<\/p>\n<h1>Extras<\/h1>\n<p><b>Stuff that came into being during the making of this post<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/github.com\/itenium-be\/synology-cloud-sync-vs-docker\">Minimal Example Code<\/a><\/li>\n<\/ul>\n<p><b>Other interesting reads<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/synocommunity.com\/package\/inotify-tools\">SynoCommunity package: inotify-tools<\/a><\/li>\n<li><a href=\"https:\/\/www.synology.com\/en-global\/dsm\/feature\/cloud_sync\">Synology CloudSync<\/a><\/li>\n<li><a href=\"https:\/\/www.reddit.com\/r\/synology\/comments\/pejrp5\/files_created_by_docker_container_not_seen_by\/\">Files created by docker container not seen by Synology Drive<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>We needed to generate some files and share them with a third party. They preferred we put the files on our SharePoint since they already had access to it.<\/p>\n<p>So we made a <code>docker-compose<\/code> that scheduled a CRON job to create the files in the shared folder.<\/p>\n<p>The files were getting generated alright and other files were getting synced alright, but the generated files were not!?<\/p>\n","protected":false},"author":1,"featured_media":1973,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[16],"tags":[17],"class_list":["post-1375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-docker","tag-synology"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Share files generated by Docker with Synology CloudSync - Itenium<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Share files generated by Docker with Synology CloudSync - Itenium\" \/>\n<meta property=\"og:description\" content=\"We needed to generate some files and share them with a third party. 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