Hello. I am dusting down a toolkit which a developed some time ago. I originally develped it on Linux Mint (~20).
I am now on:
- Linux Mint 21.3.
- version 27.3.1, build ce12230
This used to work fine, and other than what is likely to be a later version of docker, I’m not sure worl be the cause.
I am now finding that I get warnings from the docker build command, referencing a shell variable, which is included to my Dockerfile. Whilst trying to work out what’s gone wrong, I notice that you are supposed to declare these in the Dockerfile and pass as a command line argument, although I didn’t need to do this originally.
So my Dockerfile looks like this:
1 # Author: Clive Bostock
2 # Date: 22 Aug 2021
3 #
4 # Docker file to automate the setup of a database and automatic install
5 # of APEX.
6 #
7 # Relies on scripting in the deploy folder and the contents of the
8 # inventory folder. This must include the ORDS R21 xip file and
9 # chosen versions of APEX from 19.x onwards (18 has not been tested, but
10 # may work).
11 #
12 # This has been tested with APEX 19.2 and 21.1.
13 #
14 # Base our image on the Oracle enterprise database container.
15 ARG DAPEX_HOME
16 ARG ORACLE_HOME
17 ARG ORACLE_BASE
18
19 FROM container-registry.oracle.com/database/enterprise:latest
20
21 # Expose any ports we may need. We'll probably reduce the list.
22 EXPOSE 1521
23 EXPOSE 8080
24
25 # We need root access to install packages
26 USER root
27
28 # Install vi in case we wish to edit any files inside the container.
29 RUN yum -y install vi && yum -y clean all && rm -rf /var/cache
30
31 # Install java, since we need it for ORDS.
32 RUN yum -y install java && yum -y clean all && rm -rf /var/cache
33
34 # Switch back to Oracle.
35 USER oracle
36
37 # We want the files to be owned by Oracle (uid 54321)
38 COPY --chown=54321 ${DAPEX_HOME}/deploy/setup $ORACLE_BASE/scripts/setup/
39 COPY --chown=54321 ${DAPEX_HOME}/deploy/startup $ORACLE_BASE/scripts/startup/
40 COPY --chown=54321 ${DAPEX_HOME}/inventory/apex $ORACLE_BASE/scripts/setup/
41 RUN mkdir -p /var/tmp/dapex/log
42 RUN mkdir -p /home/oracle/sqlcl
43 COPY --chown=54321 ${DAPEX_HOME}/deploy/bin /var/tmp/dapex/bin
44 COPY --chown=54321 ${DAPEX_HOME}/inventory/schemas /var/tmp/dapex/schemas
45
(I have left the line numbers in from the editor for convenience)
When I try to build, I get the warnings:
clive@ryzen-mint:~/dapex$ docker build --build-arg DAPEX_HOME=/home/clive/dapex -t dapex19c .
[+] Building 3.7s (6/14) docker:default
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 1.53kB 0.0s
=> WARN: UndefinedVar: Usage of undefined variable '$DAPEX_HOME' (line 38) 0.0s
=> WARN: UndefinedVar: Usage of undefined variable '$DAPEX_HOME' (line 39) 0.0s
=> WARN: UndefinedVar: Usage of undefined variable '$DAPEX_HOME' (line 40) 0.0s
=> WARN: UndefinedVar: Usage of undefined variable '$DAPEX_HOME' (line 43) 0.0s
=> WARN: UndefinedVar: Usage of undefined variable '$DAPEX_HOME' (line 44) 0.0s
=> [internal] load metadata for container-registry.oracle.com/database/enterprise:latest 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 4.49kB 0.0s
=> CACHED [ 1/10] FROM container-registry.oracle.com/database/enterprise:latest 0.0s
=> CANCELED [ 2/10] RUN yum -y install vi && yum -y clean all && rm -rf /var/cache 3.7s
I am struggling to work out what is going on. Any help appreciated.
Thanks,
Clive