Heat Orchestration

Heat Orchestration Chapeter 5Â  Heat Orchestration 5.1 Brief Details of Heat Heat is the main project for orchestration part of OpenStack. Implementation of orchestration engine for multiple composite cloud application. It is the sequence of lines code in text file format. A native heat format can be evolving, but heat also endeavors to provide compatibility with AWS cloud information template format so that many existing cloud formation template can be launch on OpenStack. Heat provide both open stack rest API and cloud formation compatible query API. The orchestration is essentially for the software application. To manage configuration. Instead of manipulation of virtual infrastructure by hand or with the script Heat focuses to work with the declarative model. Heat works out on the sequence of lines to perform and to bring reality in to model. The model takes the heat template and the resulting collective of infrastructure resources is known as the stack. Orches,ration allows you to treat your infrastructure like code. Therefore you can store your templates version control system, such as GIT to track changes then you update the stack with the new template and heat do the rest of the actions. The main interface of heat is the OpenStack native rest API. Heat actually is between the user and the API of the core OpenStack services. In much the same way as the dashboard or the horizon does. Heat can be access through the horizon or the dashboard. Heat template describes the cloud application infrastructure in the code format that is changeable. The heat infrastructure resources include servers, floating IP, volume, security groups, and users. 5.2 Auto Scaling Heat also provides auto scaling that integrates with ceilometer. Ceilometer adds scaling group as the resource within templates. Furthermore, the template, defines the relationship between two Auto scaling by heat integrated with ceilometer that leads to add scaling group in template. The templates defines the relationship between two resources. It also able heat to call OpenStack API in order to make everything systematic. Openstack also manage the whole lifecycle of the application. You need to do the modification in the code for existing stack and heat deals with the rest in order to change something. Heat architecture components include: Heat API It is used for processing API request to Heat engine via AMQP. It implements an Open stack-native RESTful API HEAT-api-cfnit is used API compatibility with AWS cloud formation. HEAT ENGINE is main orchestration functionality. Heat uses back-end database for maintaining state information as other OpenStack services. Both communicate with heat engine via ANQ. The heat engine is the actual layer where actual integration is implemented. Furthermore, for high availability, Auto scaling abstraction is also done. Auto Scaling Heat Templates In this auto scaling example, Heat and Ceilometer will be used to scale CPU bound virtual machines. Heat has the concept of a stack which is simply the environment itself. The Heat stack template describes the process or logic around how a Heat stack will be built and managed. This is where you can create an auto-scaling group and configure Ceilometer thresholds. The environment template explains how to create the stack itself, what image or volume to use, network configuration, software to install and everything an instance or instances need to properly function. You can put everything into the Heat stack template, but separating the Heat stack template from the environment is much cleaner, at least in more complex configurations such as auto scaling. 5.3 Deployment of Heat Orchestration 5.3.1Â  ENVIRONMENT TEMPLATE Below we will create an environment template for a cirros image.As shown in FIG.5.3. The Cirros image will create the instance template, configure a cinder volume, add IP from the private network, add floating IP from the public network, add the security group, private ssh-key and generate 100% CPU load through user-data. Hot is the new template format that to replace the Heat CloudFormation-Compatible format as native format supported by heat.They are written in YAML format and JSON. Hot templates create Stack in Heat. Structure for Hot consist of Heat Template version, description, parameter groups, parameters, resources, and outputs. Heat Template Version: Is just value with the key that indicates that the YAML document is a hot template of the specific version, if the date is 2013-05-23 or later date.Shown in FIG 5.1 Fig.5.1 (Heat Template version) Description: Its an optional key allows for giving a description of the template. Fig.5.2 (Description of heat template) Parameters_groups: This section allows for specifying how the input parameters should be grouped and order to provide the parameter in. This option is also optional Parameter: This section allows for specifying input parameters that have to provide when instantiating the templates. This option is also optional as well Outputs: This part allows for specifying output parameters available to users once the template has been instantiated. Resources: It defines actual resources that are real stack from HOT template (instance for Compute, Network, Storage Volume).Each resource is defined as a separate block in input parameters. As shown in FIG 5.3 there are five separate sections. Servers, port, volume, floating IP Resource ID: must always be unique for every section Resource Types: Must relate to the service that section of template define Such as the following Nova:: Server Neutron:: Port Neutron:: FloatingIP Neutron:: FloatingIPAssociation Cinder:: Volume Properties: It is a list of resource specific property defines via the function. FIG.5.3 (Heat Template Resources) Now that we have an environment template, we need to create a Heat resource type and link it above file /etc/heat/templates/cirros_base.yaml. resource_registry: OS::Nova::Server::Cirros: file:///etc/heat/templates/cirros_base.yaml 5.3.2Â  Heat Template: The below template in FIG.5.4 defines the behavior of the stack e.g when and under what conditions the stack will scale up and scale down. cpu_alarm_high and cpu_alarm_low are used in the template to scale up and scale down our environment. FIG.5.4 (Behavior Of Stack) Update Ceilometer Collection Interval By default, Ceilometer will collect CPU data from instances every 10 minutes. For this example, we want to change that to 60 seconds. Change the interval to 60 in the pipeline.YAML file and restart OpenStack services. Check the status of the stack in Horizon Dashboard: Heat will create one instance as per defined policy: 5.3.3Â  RUNNING THE STACK: Run the following command to run the stack: [[emailprotected] ~(keystone_admin)]# heat stack-create heat_autoscale -f /root/heat_autoscale.YAML -e /root/environment.yaml Check the status of the stack in Horizon Dashboard as in FIG 5.4: FIG5.5 (Heat stack status ) In FIG 5.5 and FIG 5.6 shows the heat stack topology and resources, Events are also shown in FIG 5.6 FIG 5.6 (Heat Stack Topology) FIG 5.7 (Heat Stack Resources) FIG 5.8 (Heat Stack Events) Heat will create one instance as per defined policy in FIG 5.7: FIG 5.9 (Heat Stack Instance) Automatic Scale UP: Now we will increase the cpu utilization on one of the instances and will verify if heat autoscales the environment or not. To do that run the following commands one the instance that heat created from the stack. As shown in FIG 5.8. FIG 5.10 (Heat Autoscaling) The heat created two more instances based defined policy in the orchestration template. This is because the maximum scale up policy is 3 instances. As shown in FIG 5.8. FIG 5.11 (Two Instance base on policy) List of volumes that heat created based on defined policy threshold as shown in FIG 5.9: FIG.5.12 (Volumes that heat created based on defined policy) New Network Topology after adding instances to the private network in FIG 5.10 FIG 5.13 (Heat Topology after 2 instances) 5.3.4Â  SCALE DOWN: Scale down is the process in heat. Heat automatically scales down once the CPU utilization goes down on the instances. As the load goes back to normal and CPU cools down. The extra instances that were appeared to overcome the load will go back to one instance and all instances will be used efficiently through this way. In our scenario instance aw7blqnbabc2 is the original instance and the rest instances are to overcome the load.

Faust and Job Essay

While he was yet speaking , there came also another, and said, The fire of God is fallen from heaven, and hath burned up the sheep, and the servants, and consumed them; and I only am escaped alone to tell thee† (Bridge Builder’s Bible, Job. 1.12-16). Job loses his possessions, his children,and he suffers health wise. He becomes very ill, but no matter what life brought him he still remained faithful to God. Job could have easily given in as Faust did. In this life we have choices to make whether they be good or evil. We must suffer the consequences for every wrong deed we choose. It takes a strong will power to be determined to do right like Job. Faust believes there is a narrow limitation on the world in which he have been living until he interacts with Mephistopheles. Faust feels he knows enough about philosophy and heros of old legends. He now recalls for a divine law that proves that this action is the ruling force of the universe. This pact deal that was made was set up to fail Faust. Faust did not believe in a heaven or hell, which means he is betting his life rather than selling his soul. In Faust’s mind he is not sure if a eternal life even exists. If he gave up the world that he was living in he really felt that he would be just giving up something that dissatisfied him any way. Faust’s desires is not so much an evil one, but the idea that he has made this pact deal with the devil brings on many concerns about this decision he has made. The devil is unsure of his own ability to fulfill all the request that Faust made to him. However, the devil accepts these challenges and make sure the pact deal is signed in blood. Faust is very eager at this point to taste all the aspects of life that he thinks he have neglected. Although at first Faust rejects the offers made by Mephistopheles, he still ends up given in to this temptation. Faust should have kept his belief when saying, â€Å"the world’s pleasures cannot end his doubts or satisfy his needs† (Cliffnotes:Faust study iii). Faust is being taking advantaged of because Mephistopheles knows Faust’s weaknesses. He knows that Faust is striving to understand the universe and his place in it, while Mephistopheles has something totally different in mind from Faust. Faust just happened to be at the crossroads in his life. He was a very well-esteemed man and an intelligent scholar who was highly looked on. The book of Faust came out during the eighteenth centuries, so attitudes then may have had an impact on how people, in particular Goethe may have viewed life. During that time attitudes were focused more toward earthly life and beyond. Looking at Faust attitude compared to Job’s, I see that Job was strong while Faust was weak. I find them to be different from each other just by viewing who gave in to this trick. It is plain to see that Faust gave in and Job stood his ground. It means a whole lot when someone can stand their grounds and not be moved by nothing in this world. Job’s world was in turmoil, but this did not interfere with his faith nor the confidence he had. Satan was concerned with getting souls that he can keep for eternity. He used any tactics he could to seduce Faust. The Devil offered earthly things to blindfold Faust. The Lord did let Mephistopheles know that when he grants him permission to engage in Faust’s life, Faust will be fully aware of the righteous path, whether he chooses it or not. I believe at this point Faust is beginning to see Mephistopheles for who he really is. I had came to this conclusion personally when I read these lines: â€Å"Your real being no less than your fame Is often shown, sirs, by your name, Which is not hard to analyze When one calls you the Liar, Destroyer, God of Flies. Enough, who are you then? Part of that force which would Do evil evermore, and yet creates the good. What is it that this puzzle indicates? I am the spirit that negates. And rightly so, for all that comes to be Deserves to perish wretchedly;’Twere better nothing would begin. Thus everything that your terms, sin, Destruction, evil represent- That is my proper element. You call yourself a part, yet whole make your debut† (Goethe 705)? Mephistopheles was a smooth talking and slick which reminds me of Satan himself. Job at some point in his life wished he had never been born. How can anyone fault Job for feeling the way he did after going through these horrible storms in his life. He had to face these mountains and conquer his fears. I do understand Job was human, so he had a right to feel saddened or possibly even lonely. Faust longs to find something absolutely enduring so that he can end his alienation. He rather ignore reality just to have pleasures fulfilled for a few years rather than having something that will please him forever. Faust understands life, but he wants to dig deeper into the truth about supernatural things. In return for his search on this he turns to magic which leads him to making this pact deal with the devil in the first place. Satan plan he had for Job did not work as God said. Mephistopheles tries to criticize God by saying he made an imperfect world. However, he did help God carry out his will through using this pact deal with Faust. Satan main goal and purpose is to defeat God by taking over every soul. It is evidently true just reading: â€Å"And in return, what do you hope to take? There’s so much time so who insist? No, no! The Devil is an egoist And would not just for heaven’s sake Turn into a philanthropist. Make your conditions very clear; Where such a servant lives, danger is near† (Goethe 711). It is obvious that Mephistopheles is not on Faust side. Once he get him right where he wants him he is going to surely take his life. What good can come from someone when they encourage another human being to take their life. No friend would want to see you die. I consider that to be for someone who hates you and they must be cold-hearted. One comes to know good by knowing evil. A person can not come to know God without knowing this knowledge. True knowledge is gotten only from experience. Just like the Devil Mephistopheles often speaks the truth to get what he wants. Faust wanted much and he was never satisfied so greed began to take over his life. Job was satisfied with what God had given him and that is how he was able to stand on the word of God. He return for Job’s pain God restored to him everything that he had lost. He gave him back more than what he had before. Faust struggle with self worth causes him to have an inability to have faith in God. However, God does not give up on Faust. Believe it or not God gives us many chances in this world today because he has not given up on us either. God knew Faust struggled, but he allowed him to reach his low point in order to draw him back. Mephistopheles duty was to lead Faust down a dark road. If Satan could have done the same thing to Job he would have, but Job was too strong for him. Therfore, Satan fault a loosing battle with Job. In the process Faust is responsible for three deaths in this story, although he was influenced by Mephistopheles. God has given us the spirit of unlimited belief.The battle really begins in our mind. It is our will and emotions that control what we do or think. We must stop limiting God by the level of our faith or belief. He is and will always be the God of the impossible. People must demand that Satan leave them alone and not just ask this. It is good to know that by the power of the holy spirit we have authority over Satan to tell him what to do. Satan must be put in his place. Satan is a great pretender, so don’t be deceived by his fierce growl. I am encouraged knowing this scriptures, â€Å"and put on the whole armor of God so that ye shall be able to quench all the fiery darts of the wicked† (Bridge Builder’s Bible, Ephesians6.11-18). After being tested it feels good to know t hat someone passed their test and did not fail. I must be strong myself and not get caught up in the crossroads of my own life. People must have faith in order to make it in this world. Nothing can compare to what God has to offer us in heaven. God is amazing and he is the almighty whom we must answer to. It is great to have Job like attitude and not Faust attitude towards life. I encourage people to be strong in the Lord, having much faith. Works Cited Johann Wolfgang von Goethe. Faust. New York:W.W Norton &Company, 1984. Lawall, Sarah, ed. The Norton Anthology of world literature .London: Castle House, 1909. Rod Parsley. Bridge Builder’s Bible. Deerfield: International Christian Publishers, 1997. Cliffs Notes -The Fastest Way to Learn. Wiley Publishing, Inc. 2000-2010 Faust, Parts 1 and 2. 11 November 2010 .

The Recorded Music Industry - 1602 Words

The recorded music industry is currently experiencing difficulties unimaginable during the 1980s, which were a period of growth, consolidation, and technical advancement. The album sector was still strong across the industry, something that became a financial boom from the mid-80s onwards with the advent and subsequent popularity of compact discs (CD). CDs became the dominant carrier of recorded music and quickly superseded vinyl albums. This was a major fillip to record companies, as fans bought CDs of their favourite old vinyl albums, thus classic albums artists from the 60s and 70s sold substantial amounts of CD versions of their old album catalogue. As many major record companies were part of multinational electric goods companies, a valid argument can be that record companies were providing the software (CDs) for the multinationals hardware (CD players). To illustrate this point, the electrical goods giants Philips and Sony owned record companies, and as stated on the Philipsâ⠂¬â„¢ website also collaborated in the research and development of the compact disc. The effect of owning both aspects of the process resulted in profits being monopolised by the multinationals. The current malaise afflicting the recorded music industry can be traced to the development of digital downloads to the market. Recorded music can now be compressed and made available in a digitally transferable format known as MP3. However, due to the digital nature of the format it is easier to shareShow MoreRelatedThe Future Of Recorded Music1703 Words   |  7 Pagesto Media 17 November 2015 The Future of Recorded Music Historically, recorded music holds a prominent place in social and civil issues. People recorded music themselves from live concerts or radio play. More people also bought physical copies of music, such as records and CDs. 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Is It Really That Important You Look So Far Ahead

Is it really that important to look so far ahead? Yes, it is extremely important that we predict what life and demography might be life in the future. In fact, it allows us to prepare for everything, such as the kinds of career we may pursuit to the amount of children we may wish to have. As you continue through this Smore, you will be learning about the demography of Canada in 2060, such as its immigration, population differences, and much more. Our Demography Before we take a step into the future, let s first find out about our current demography. As of 2015..... Canada has a population of 35.16 million people. Canada also has a birth rate of 10.28 per 1000 people A death rate of 8.42 per 1000 people A population growth rate of†¦show more content†¦Immigration As of now, Canada heavily relies on immigrants to increase its population and its economy. These are the following statistics: Immigration Rate: 7.41 people per 1000, with a total of about 264,904 immigrants Emigration Rate: 1.75 people per 1000, with a total of about 62,560 people who emigrated Net Migration Rate: 5.66 migrants people per 1000 people, the difference between the immigration and emigration rates. (About 202,344 people) This means that we attract more immigrants than we drive away, increasing our population and economy. However, this also indicates that Canada s economy may become much worse if the flow of immigrants become lower. Currently, the First Nations, Inuit, and Mà ©tis people of Canada are not treated as well as they were told they would be. This is evident in the fact that they are constantly segregated and the subject of many cruel and racist stereotypes over the years (such as being drunks, drug-addicts, etc.). Moreover, their quality of life is not very appreciable, as the quality of the land that they live on is not considerable, the quality of education is not up to par, and their homes are in disrepair. Furthermore, they do not have many rights, and these Aboriginals can receive a post-secondary education if they give away their status as a registered Aboriginal. These points further reinforce the fact that the Mà ©tis, Inuit, and First Nations people of Canada are