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It is sufficient to use a Self-Signed SSL Certificate in my develop environment on IDCF Cloud. When it comes to the prodoction environment on Vultr, it should be better to purchase a CA-Signed SSL Certificate. Of course cheaper is better for my personal use, I choice a Cheap Comodo PositiveSSL Certificate from Namecheap. I already bought a domain name from Namecheap, it is a convenient way using same registered my account. And what is better my confidential information it protected with WhoisGuard.

After a while using ctlc/btsync to sync a MoinMoin between Vultr and IDCF Cloud instances, it suddenly stopped syncing. The verion of Bittorrent Sync in the current ctlc/btsync image is 1.3.105 and it is a little old. I don't know whether the old version is related, I intend to write another Dockerfile and bebug sync processes as practice.

I am using BackUpWordPress for my WordPress blog backup solution. This plugin can create schedules for backup. I make a schedule to backup twice a day. Of course, since I am running my WordPress site on Docker, I set up a cron job putting archives to IDCF Object Storage on Docker. I created my repository on Docker Hub Registry.

While waiting for the DHL man to deliver my Spark Core, I picked an Intel Edison up in my hand yesterday and become more interested in. It's an another tiny computer. This month I saw three Chinese state of the art products. One is a Spark Core, another is an Intel Edison, and the other is new RoboCop. When I realized it, many innovations coming from China these days. Finally my Spark Core arrived, it takes almost a month. Due to an error the order it returned to GlobalShopex. Thanks to they shipped with priority service as a compensation, it delivered in five days. I can't wait for the weekend tinkering with Spark Core and Arduino!

Docker 1.3.0 has been released on October 16, 2014 and this version is supported by CoreOS 472.0.0 via alpha channel. And Docker 1.3.0 comes with docker exec command which can do without nsenter. Before releasing Docker 1.3.0 via stable channel, nsenter is still useful. Althogh nsenter is there but not docker-enter supported, I'm going to install docker-enter and helper function on CoreOS. A little bit older version of CoreOS 410.2.0 is provided on IDCF Cloud, it's still necessary to this environment as of October 29, 2014.

I'm thinking about installing command line tools to CoreOS via fleet unit files. This idea comes from Kubernetes Installation on CoreOS. As usual to install binaries written in Go is very easy, just put it somewhere in your path. Combining with fleet oneshot service, I'm going to install a Google Drive CLI client on CoreOS.

I'm making plans to migrate my MoinMoin from Sakura VPS to Vultr. I could mostly done those preparations. One of the remaining works is to backup MoinMoin pages data and sync data between multi-clouds. I decited to use a syncing technology of BitTorrent Sync following a CenturyLink Labs tutorial. My first goal is to sync data between Vultr and IDCF Cloud both are sit on CoreOS.

I've finally gotten used to creating CoreOS cluster with fleet. After successfully multi-cloud deployment across IDCF Cloud and DigitalOcean, this time I want to let a Vultr instance join to my CoreOS cluster and run a MoinMoin fleet unit service. It should be possible to be cloud provider agnostic using CoreOS as a platform of infrastructure.

When I shopped on MakerShed from Japan the shipping process was passed to GlobalShopex for international order fulfillment. After two weeks ago my order has not delivered yet. I emailed for remind and my order status finally updated. It seems that it takes a few days to receive my order. I have learned my lesson. It's better to be early reminder email for international shopping.

DigitalOcean now officially supports CoreOS and cloud-config is integrated. It offers better user experience for providing cloud-config setting via the web console or api than other VPS providers. I often use IDCF Cloud which offers virtual router and each instances resides behind a firewall. When I use CoreOS on DigitalOcean I am a bit surprised that it has no iptables rules and open to the world as default.