 official documentation.
To sum up, the recommanded way to provision a karaf server is to package your application code as osgi features, then to install these features using karaf shell commands.
According to me this method has a huge drawback in a container world. Let’s say you have a container to manage your karaf server, each time you will have to install a feature in it, you will modify your container by applying configuration in it, breaking the rule of idempotence a container should follow.
To respect idempotence, it would be better to package your karaf server with all features you need, then build it and run it as container.
Current version of karaf at the time of writing this article is 4.1.4.
You can generate your own karaf distribution by using the maven archetype : karaf-assembly-archetype. For the purpose of this article, we will init a karaf-sandbox-distribution project. The karaf-sandbox-ditsribution project will consists of a karaf standard installation packaged with hawtio web console.
Launch the following command from this directory to init the karaf distribution (Change groupId, package, … according to your needs).
This command will generate a directory karaf-sandbox-distribution with a well formatted pom.xml in it.
dependencies : all the dependencies listed here will be included in the generated package.
You will be able to start your karaf server by launching bin/karaf command directly from the target/assembly directory (provided that you have a valid installation whith JAVA_HOME env variable parametred).
To add hawtio feature to your karaf distribution, you will need to add the hawtio xml features dependency in the maven dependencies, then add the feature hawtio (or hawtio-offline, the one I use in this article) to the boot features, so that I will be installed during karaf boot.
I also removed the wrapper feature from installedFeatures section, because I installs a lot of default features I don’t need.
Now if you re-install your project with maven, and start it, hawtio will be installed and you will be able to connect to hawtio web interface : http://localhost:8181/hawtio.
Same could be done with your custom application code. Just package your application code as osgi features, then add the repository xml feature in dependencies section, and finally add your custom features to bootFeatures list.
Now that we know how to package a custom karaf distribution, we can focus on how to run it with docker.
8101 : Karaf ssh default port.
8181 : Karaf http default port.
This Dockerfile use a docker multi-stage build, to provide a minimal image : first part of the dockerfile is just used build the Karaf distribution with maven.
Creating karafsandbox_karaf_1...
Here we are, you have a custom karaf distribution running in docker container! To go further, I will explain you how to scale this docker service in a future article.
From its Broadway beginnings to the classic film musical, this heart-warming rags-to-riches story of Annie’s adventure; from a New York orphanage to the luxurious home of Oliver Warbucks; is a story that has been told all over the world for decades and will continue for many years to come.
Old Westport Road, Castlebar. County Mayo.
After years of the hard-knock life at the New York City Municipal Orphanage, 11-year-old Annie decides to run away to find her parents who left her with nothing but half of a silver locket and a written promise to return. Annie sneaks out of the orphanage and comes across Sandy, an abandoned mutt who becomes her fast friend and constant companion. Soon after her escape, the police catch up with Annie, and she is returned to the villainous orphanage director Miss Hannigan. In the meantime, Grace Farrell, personal secretary of billionaire Oliver Warbucks, pays a visit to the orphanage. Warbucks wants to invite an orphan to visit his mansion for the Christmas holiday, and though Miss Hannigan does everything in her power to discredit Annie, Grace is drawn to the girl and is determined to take her back to the mansion.
Once Annie arrives at the mansion, she is completely in awe of her new surroundings, along with the special treatment that she is receiving. Warbucks quickly feels a deep connection with the spunk and personality of the young girl and decides to take the night off to escort Annie on a grand tour of New York City. After spending the evening with her, Warbucks decides he wants to adopt her. When he announces his intentions to Annie, she begins to cry and explains her wish to find her parents. With this newfound information, Warbucks begins an extensive search for Annie’s parents, offering a reward to any couple who can prove that she is their daughter.
With plans to claim the reward money for her own, scheming Miss Hannigan hatches a plot with her brother Rooster and his girlfriend Lilly. Rooster and Lily disguise themselves as Annie’s parents, Ralph and Shirley Mudge, and they appear with Annie’s birth certificate, the other half of her locket, and plans to take her to New Jersey to live on a pig farm. Upon Warbucks’ request, the “Mudges” agree to let Annie spend one more night at the Warbucks mansion. They leave with a promise to retrieve her and the reward the next day. Feeling apprehensive, Warbucks calls in a favor from his personal friend President Franklin D. Roosevelt, and the FBI investigates the Mudges’ authenticity. The next morning the truth is revealed – the Mudges are imposters and Annie’s real parents are unfortunately dead.
After hearing the news, Annie and Warbucks declare their love for each other as father and daughter. Miss Hannigan, Rooster and Lilly are taken to jail and Annie introduces the rest of the orphans to her new Daddy Warbucks. She promises them they will all have a much better life in the future!
Eighth-grader Cassius Smoker gets the scoring started for Frazer during the Bearcubs game against the Lustre Christian Lions Jan. 7.
Frazer's boys basketball team had a tough return to the court after the holiday break, facing the top two teams in the district. The Bearcubs fell to Nashua on the road Friday by a 70-35 score. They faced the top-seeded and undefeated Lustre Chris...The UKCAT Verbal Reasoning section is similar to a comprehension test.
The UKCAT verbal reasoning section aims to assess the accuracy and speed of reading – important traits for a doctor. You need to able to find information that is relevant, then analyse statements related to the passage. You have just under 30 seconds to answer each question. As with all sections you have one minute to read the instructions.
Usually, there are 11 separate pasages, each with 4 questions about it.
As mentioned, you have 30 seconds to answer each question in the ukcat verbal reasoning subtest. Build this into the time you have to also read and understand the question, that’s not much time!
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When to pick True: You should pick True if a statement either matches the passage of can be directly inferred from it.
When to pick False: Choose this is the statement either contradicts the passage or exaggerates a claim the passage makes to an extent that it becomes untrue.
When to pick Cannot Tell: Cannot Tell is usually the most difficult option to pick. You must remember you’re answering only on the passage, not based on any of your own knowledge! You should choose Cannot Tell when there isn’t enough information to make up your mind either way. Try to use this option actively – it isn’t something to conclude too quickly. If you find yourself actively looking for information to select True or False, then the answer is probably Cannot Tell.
We have a useful video on verbal reasoning from Zenab, one of our expert ukcat tutors, behind the thought process you should go through to pick an option.
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We say the most appropriate because more than one answer can seem appropriate, so you need to pick best response, because only one answer is correct. As with the rest of the ukcat there is no negative marking, so if you are unsure of the best response you can make an educated guess.
No we don’t mean verbs that have been snowboarding. We mean words like “Extremely“, “Always” and “Never“. These words stand to make bold claims, which often can make them untrue. You need to be able to find direct contradiction to mark them as false however. Keep a lookout for words that are the “be all and end all”.
You can flag and come back to any questions that are taking a lot of time or thought. By flagging for review, you make this easier. Since time is of the essence, you don’t want to waste time mulling over a long passage when you could be scoring easy marks elsewhere. Finish all the easy questions first then return to harder ones if time allows. If you are running low on time, make sure to make educated guesses since there’s a good chance you pick up the mark anyway.
Carefully analyse the statements like you’re in a court room. Look for the evidence! Examine the