CODEWITHSUNDEEP
bashdockermacosgodockerfile
kmaheen456
kmaheen456

Reputation: 21

failed to read Dockerfile MacOS GoLang; Trying to create an image

I keep running into that error on the last line and have tried putting the dockerfile in the tmp folder but still get the same error; I even tried upper casing and lowercasing the docker file name, it didn't resolve the issue.

my file path is Users/maheenk/Desktop/infra

my docker file :

#syntax=docker/dockerfile:1

#using latest version
FROM golang:latest

WORKDIR /app

#Download necessary Go modules
COPY go.mod ./
COPY go.sum ./
RUN go mod download

#copies source code onto image
COPY *.go ./

#static application in rootfilesystem
RUN docker build -t internhw:latest -f .Dockerfile .

EXPOSE 8080

#command to execute when image is used to start a container
CMD [ "internhw"]

the command I run in terminal:

docker build -t internhw:latest -f .Dockerfile .

what the output is in terminal:

[+] Building 0.1s (2/2) FINISHED                                                                                                       
 => [internal] load build definition from .Dockerfile                                                                             0.1s
 => => transferring dockerfile: 2B                                                                                                0.0s
 => [internal] load .dockerignore                                                                                                 0.0s
 => => transferring context: 2B                                                                                                   0.0s
failed to solve with frontend dockerfile.v0: failed to read dockerfile: open /var/lib/docker/tmp/buildkit-mount200403056/.Dockerfile: no such file or directory

Output of command in terminal: ls -al

total 160
drwxrwxr-x@   9 maheenk  staff    288 Apr 24 11:42 .
drwxrwxrwx@ 110 maheenk  staff   3520 Apr 23 17:24 ..
-rw-r--r--@   1 maheenk  staff   6148 Apr 24 11:42 .DS_Store
drwxr-xr-x   14 maheenk  staff    448 Apr 24 11:00 .git
-rw-r--r--@   1 maheenk  staff    523 Apr 24 10:54 Dockerfile
-rw-r--r--    1 maheenk  staff    669 Apr 23 16:26 go.mod
-rw-r--r--    1 maheenk  staff  56262 Apr 23 16:26 go.sum
-rw-r--r--    1 maheenk  staff   2126 Apr 23 16:09 main.go

I added a .Dockerfile to the folder(basically a copy of the dockerfile that i renamed by putting a period in front of)

drwxrwxr-x@   9 maheenk  staff    288 Apr 24 13:03 .
drwxrwxrwx@ 111 maheenk  staff   3552 Apr 24 12:43 ..
-rw-r--r--@   1 maheenk  staff   6148 Apr 24 13:03 .DS_Store
-rw-r--r--@   1 maheenk  staff    513 Apr 24 13:06 .Dockerfile
drwxr-xr-x   14 maheenk  staff    448 Apr 24 13:00 .git
-rw-r--r--@   1 maheenk  staff    523 Apr 24 10:54 Dockerfile
-rw-r--r--    1 maheenk  staff    669 Apr 23 16:26 go.mod
-rw-r--r--    1 maheenk  staff  56262 Apr 23 16:26 go.sum
-rw-r--r--    1 maheenk  staff   2126 Apr 23 16:09 main.go```

UPDATED VERSION:

redid the run line in docker as suggested

#syntax=docker/dockerfile:1

FROM golang:latest


WORKDIR /app

# Download necessary Go modules
COPY go.mod ./
COPY go.sum ./
RUN go mod download

#copies source code onto image
COPY *.go ./

#static application in rootfilesystem
RUN build -t internhw:latest .Dockerfile .


EXPOSE 8080

#command to execute when image is used to start a container
CMD [ "internhw" ] ```

when i run in terminal docker build -t internhw:latest .Dockerfile .

"docker build" requires exactly 1 argument.
See 'docker build --help'.

Usage:  docker build [OPTIONS] PATH | URL | -

Build an image from a Dockerfile

Upvotes: 2

Views: 474

Answers (1)

VonC
VonC

Reputation: 1325017

It does make little sense to do a docker build inside a Dockerfile which is itself... 'docker built'.

If you need to add resources to an existing image, you can use COPY or ADD inside your Dockerfile.

If you need to compile something and put the result in an existing image, you can use a multi-stage build.

Upvotes: 1

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