commit
cda4b040b4
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@ -180,7 +180,7 @@ replicating.
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In general, when a new Pod joins the set as a slave, it must assume the MySQL
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master might already have data on it. It also must assume that the replication
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logs might not go all the way back to the beginning of time.
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These conservative assumptions are the key to allowing a running StatefulSet
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These conservative assumptions are the key to allow a running StatefulSet
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to scale up and down over time, rather than being fixed at its initial size.
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The second Init Container, named `clone-mysql`, performs a clone operation on
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@ -52,7 +52,7 @@ Summary of container benefits:
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* **Cloud and OS distribution portability**:
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Runs on Ubuntu, RHEL, CoreOS, on-prem, Google Container Engine, and anywhere else.
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* **Application-centric management**:
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Raises the level of abstraction from running an OS on virtual hardware to running an application on an OS using logical resources.
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Raises the level of abstraction from running an OS on virtual hardware to run an application on an OS using logical resources.
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* **Loosely coupled, distributed, elastic, liberated [micro-services](http://martinfowler.com/articles/microservices.html)**:
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Applications are broken into smaller, independent pieces and can be deployed and managed dynamically -- not a fat monolithic stack running on one big single-purpose machine.
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* **Resource isolation**:
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@ -106,7 +106,7 @@ Kubernetes is not a traditional, all-inclusive PaaS (Platform as a Service) syst
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* Kubernetes does not provide nor mandate a comprehensive application configuration language/system (e.g., [jsonnet](https://github.com/google/jsonnet)).
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* Kubernetes does not provide nor adopt any comprehensive machine configuration, maintenance, management, or self-healing systems.
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On the other hand, a number of PaaS systems run *on* Kubernetes, such as [Openshift](https://github.com/openshift/origin), [Deis](http://deis.io/), and [Gondor](https://gondor.io/). You could also roll your own custom PaaS, integrate with a CI system of your choice, or get along just fine with just Kubernetes: bring your container images and deploy them on Kubernetes.
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On the other hand, a number of PaaS systems run *on* Kubernetes, such as [Openshift](https://github.com/openshift/origin), [Deis](http://deis.io/), and [Eldarion Cloud](http://eldarion.cloud/). You could also roll your own custom PaaS, integrate with a CI system of your choice, or get along just fine with just Kubernetes: bring your container images and deploy them on Kubernetes.
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Since Kubernetes operates at the application level rather than at just the hardware level, it provides some generally applicable features common to PaaS offerings, such as deployment, scaling, load balancing, logging, monitoring, etc. However, Kubernetes is not monolithic, and these default solutions are optional and pluggable.
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Reference in New Issue