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How to determine if a process runs inside lxc/Docker?
...nly three of the ten cgroups (3:cpuset, 4:perf_event and 7:freezer) are at root; the rest are under /init.scope. That said, I think that searching that file for :/docker/ is probably the most reliable heuristic at the moment.
– cjs
Feb 28 '18 at 7:40
...
SSH to Elastic Beanstalk instance
...inux, the default user name is ec2-user. For RHEL5, the user name is often root but might be ec2-user. For Ubuntu, the user name is ubuntu. For SUSE Linux, the user name is root. Otherwise, check with your AMI provider. (credit: docs.aws.amazon.com/AWSEC2/latest/UserGuide/…)
–...
process.env.NODE_ENV is undefined
...d will also make sure it works across different platforms.
In the project root, run:
npm install cross-env
Then in your package.json, under scripts, add:
"start": "cross-env NODE_ENV=dev node your-app-name.js"
Then in your terminal, at the project root, start your app by running:
npm start
...
Using an SSH keyfile with Fabric
...2] No such file or directory: ' /path/to/.ssh/key' or Login password for ' root': just make sure you have no whitespaces in your .ssh/config. It's for example User=root instead of User = root...
– dennis
Dec 13 '13 at 12:39
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Getting Chrome to accept self-signed localhost certificate
...after adding the certificate to the system certificate store under Trusted Roots. Even though the certificate is listed as correctly installed when I click "View certificate information" in Chrome's HTTPS popup, it still insists the certificate cannot be trusted.
...
译文：理解Java中的弱引用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...方面的专家，但是我认为至少你应该了解什么是弱引用，如何使用它们，并且什么场景使用。既然它们是一些不知名的概念，我简单就着前面的三个问题来说明一下。
强引用(Strong Reference)
强引用就是我们经常使用的引用，其...
Run a Docker image as a container
... If you need to add an environment variable you can do docker run -i -t -e ROOT_PASSWORD=root ubuntu:12.04
– Balaji Radhakrishnan
Dec 16 '17 at 14:23
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How do I initialize a TypeScript object with a JSON object
...
TLDR: TypedJSON (working proof of concept)
The root of the complexity of this problem is that we need to deserialize JSON at runtime using type information that only exists at compile time. This requires that type-information is somehow made available at runtime.
Fortuna...
How to change position of Toast in Android?
...Height();
if (v.getGlobalVisibleRect(gvr))
{
View root = v.getRootView();
int halfWidth = root.getRight() / 2;
int halfHeight = root.getBottom() / 2;
int parentCenterX = ((gvr.right - gvr.left) / 2) + gvr.left;
int parentCenterY = ((gvr.bot...
More elegant “ps aux | grep -v grep”
...)
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1902 0.0 0.1 82560 3580 ? Ss Oct20 0:00 /usr/sbin/sshd -D
$ ps up $(pgrep -f sshddd)
error: list of process IDs must follow p
[stderr output truncated]
$ ps up $(pgrep -f sshddd) 2>&-
[no out...